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Small
but perfectly formed...
The much heralded 31st
July SETI 'server
outage' finally forced me to
acknowledge that even my lowly
output can benefit from a caching
program. SETIDriver
(V1.42 is out and about) to cache
and SETISpy
(v 2.52 latest) for glorious info
make a great combination for my
BP6/Win98/Celery setup. The topic
of caching appeared as a long
conversation (see Re:major outage
on July 31...) on the alt.sci.seti
newsgroup and finally made me
decide that Carolyn
(of clinic
fame) was not human after all.
I've been convinced for sometime
that her (!) answers were
definitely of the AI/Turing
machine variety but the 'zipping'
files suggestion - "I have
zipped one file before by just
renaming it and changing the
extension to zip, but how do you
zip together more than one?" was
conclusive proof of a clever
software emulation that was
repeating key words just once too
often. Also in a humourous vein is
a well constructed graphic
on the HardOCP
site that provides answers to a
lot of my windows problems. Thanks
to Rizen
at Rizenet
for that one. That's the rambling
intro over so I guess I better
give you a few times to keep the
number freaks at bay...those of
you who've submitted beta times
can relax in the knowledge that I
send them on to RB
to cogitate upon.
A K6-2 time from Bjarne
of
12:32 achieved via a 450/100 setup
on Win98 is in the right area but
could be another 30 mins to lose
there with the right tweaks.
Likewise Francin's
450 Celeron (4.5 multiplier) and
7:49 is okay but should be
regarded as a baseline for further
reductions to about 7:10 say. If
you've been following Rat
Bastards
prognostications on the beta page
then you'll know that FSB is going
to be playing a smaller role in
the v3 client. But for now we are
still living with v2 and it's good
to see that Kris
is fiddling with bus/multiplier
combinations on his PII. He's gone
from a 4x108, 6:57 to a 3.5x124,
6:42 to knock 15 minutes off. A
small but pleasing improvement,
might have expected more but if
that's the time then so be it.
Coming in at under 6 is Nemo
and a Dell PIII 733/133 which
benched a 5:52. Not going to win
any prizes there but if you want
reliable and solid let Dell have
their settings but for Seti speed
those conservative timings are a
killer. Win 98 instead of NT4
would be a significant help as
well though an OS change is more
for home machines than the one at
work! That man Clank
has been dusting down the
mothballed kit in his neck of the
woods, again. The result is a
bench on an SGI Origin sporting a
MIPS R12000 cpu with 2MB L2 cache,
yummy. These are seriously
scaleable processors that are
happy congregating in groups of 16
to 512 units. This rather stonking
graphics machine (though no longer
king of the hill) runs at a
comfortable 300MHz and quickly
produced a 3:02. Is this stuff
just hanging around your office
looking for an excuse to exist or
does someone occasionally put them
to proper usage? I wonder what
you'll chase out the bushes next!
Origin 3800 perhaps, I can dream
at least. Finally apologies still
for the results table being out of
date. The 'guru' problem hangs
over it still.
Max
out.
Einstein's
Blackboard...
Typical no updates for a few days
then several all at
once...happening news: great isn't
it. So here I am - back in the
land of the living Seti crunching
monster we call TLC.
Grand. I have returned from a
seriously intensive week of pure
math's (9am - 9pm, with optional
10pm lectures if keen) at
Nottingham and after catching up
on some sleep am almost refreshed
and on a charge. With the various
changes to the site structure Rat
and zAmboni
have been loading the
front page with juicy news - some
very interesting bits about
'tailor' made PCI Seti cards (hoax
it seems) and V2.70 client info
(see below - right now!)
especially the FFT size details
that will make a lot of small L2
cache cpu owners happy!. In
regards to beta testing and
benchmarks thanks to wehringer
for your time (a painful 40hrs)
but I'm not starting a separate
table (lets get the old one
updated first - Rat
is working on it) for the beta, RB
is covering it's vagaries far more
efficiently than I can.
Anything that speeds my modem up
is pleasing so here's an
interesting link for a registry
hack - p.2 & 3 are the
useful bits. It seems to have
given a slight boost (10% perhaps)
so some of you might benefit. I
thought I'd come across most of
them but this was new to me.
Enough natter and onto the
submissions that have appeared
during my absence...d2s
opens the account with a Pentium
166, W98 and the nonIntel 2.4
client churning out a 29:36, now
if this is the same underclocked
beast that produced 37.35 running
at 133 then this is interesting.
If not then it's in just the right
area time wise. A 9:54 from Felipe
is
reasonable but there's some slack
to be cut off there if you want,
but it's good to see any K6-2
owners into single figures. The
names get more bizarre but that's
up to you (I'm just the messenger,
good taste is not in my remit) so Chewie's
Hairbrush
gets a special mention for
originality. Another rare sighting
of a very solid Unix server (HPPA
8000) system running out benches
in 8:58. Excellent at what it does
but that was never meant to
include crunching Seti WU's! Yet
more rarity but this time in the
OS from Jose
Moreno whose
BeOS equipped 800MHz Athlon
returned an 8:03 but then as
expected knocked a hour off to
7:10 by running Linux. Unless you
have antipathy towards running W98
it will take another 20 minutes
off if you go down that route.
Thanks for that as I always like
it when people do direct
comparisons on the same hardware.
Here you go Jason,
the answer to your question
(assuming the link holds) about
Thunderbirds. Vanzuylen
has an 800MHz T-bird with Win2k
that delivers 8:01, nothing
special there, in fact downright
disappointing considering the 256
KB L2 runs at clock speed.
Standard Athlon L2 runs at a
fraction not exceeding a half of
the cpu clock. There's a long and
detailed account of
Athlon/Thunderbird/PIII
differences at Anandtech.
Win2k can account for some of the
slowness but my guess is that the
mobo you have uses the KT133
chipset which is definitely sub
par. As if to prove a point Vanzuylen
also offered up a 700 Athlon/W98
time of 6:55 - more than an hour
to the good. An overclocked PII
(433/108) time from Kris
of 6:57 is in the right area
though you'd gain some worthwhile
time by disabling those background
applications such as Norton
AntiVirus, DirectCD, MDM etc, it's
a benchmark after all. Also
disabling ECC in bios should give
you a slight edge - depends on how
necessary it is for system
stability/data integrity. Look
forward to your next considerably
faster submission. Seems quite a
while since Angus
graced this page so here's a
Celery II (another disappointing
new-ish cpu) time from the man
himself. Overclocking a 566 to 708
with CAS2 ram and W98SE outputs a
6:44. Nothing special except that
it's actually quite good
considering the 83 FSB, up from
the laughable 66 these cpu's
default to. Chaz
benched a new Dell 4100 (PIII, 933
MHZ, 133 bus on the 815 chipset)
and was slightly down about the
5:13 it returned. After a little
more 'playing' he reduced that to
an average 4:50 in safe mode (W98)
but still felt it lacked
something. Looking at the table it
seems to be in the right area
considering the FSB. The Dell
tweaked (read under-optimised for
stability) bios could easily be a
source of time losses and the
Intel 815 (Solano) chipset is
still only reviewed generally as
'okay' compared to the venerable
BX. Added to this is the latency
doubling once the 256Kb cache is
exceeded so perhaps you shouldn't
be too surprised. Keep tweaking if
you can find anything to tweak! Bob,
if you are reading this could you
supply some more info in regards
the stunning time you submitted,
thanks. As for the blackboard (the
great man visited Notts Uni and
the offending blackboard and
clever grafitti is in a glass
case) it looked like any other - I
couln't understand the sloping
scrawl but who needs to be able to
write clearly to be brilliant.
Finally thanks to Mournblade
who got an interesting reply from
SGI technical support (UK) about
the speed of MIPS processors
for Seti crunching. The last line
reads "...so a 400Mhz R12000
(which is the current CPU) should
take 1 hour 34 minutes therefore a
512 CPU Origin should manage about
7804.1414 per day." Anyone
got a spare Origin?
Max
out.
Initial
results from the beta
I've
had a chance to review the new
2.70 beta client, and I've managed
to get all the data that I can for
the time being. Of course, I'd
like to point out before I go over
the results that this is not
the final client, nor should it be
expected not to change. However,
it is indicative of the final
client's performance, and there
may not be a change. So, for the
time being, just consider it as a
possibility of the future.
With the hardware that I had on
hand, the best testing I could do
would be to try 3 different cache
sizes on what would be otherwise
identical (more or less) CPUs.
What I was trying to find out was
whether or not the new FFT routine
really was as cache friendly as
had been previously thought. And
just how small the new working set
would be. I had at my disposal a
PIII 550 Katmai, equipped with a
512K L2 cache, a PIII 550
Coppermine, equipped with 256K of
L2, and a 366 Celeron, which
I overclocked to 550, and had a
128K FSB. Notice that not only
were all CPUs the same speed, but
the FSBs were identical on all of
them.
The rest of the test bed consisted
of a Abit BX6 Rev2 board, equipped
with 128M with a 2-3-2 timing. The
reason for the funny timing? It's
the fastest memory settings I can
get to work at the normal FSB for
this machine (138), and I simply
forgot to set them back. The
system is running Windows2000
Professional, with any unnecessary
programs shut down. The screen
saver was set to a standard blank
screen, instead of the Seti
clients screensaver (it's too
slow), and the client was set to
run all the time. I ran this test
overnight each time, so that I
could ensure that nobody would
disturb the machine.
The first test was performed with
the 550 Coppermine, which was
already in the system. I ran the
client overnight, finishing the
workbench unit in a blazing fast
5:13. This is very impressive
for the new client, considering
the fact that with the same system
running at 760MHz with the 2.0
client, it took 5:23. So
everything was faster with the
slower CPU. Very nice and
indicative of L2 cache
optimizations. One way to tell on
that though.
The next run was with a 550
Katmai, which is equipped with
512K of L2 cache (half speed, so
275MHz). I ran the test again on
the testbed machine, using the
same work unit and the same
conditions. The time was 5:13.
Identical! So the new 2.7 beta
looks to have shrunken the working
set size down below 256Kb which is
a huge boost for everyone. The
only thing left to test was
whether or not a Celeron would run
as well.
Thanks to MadMac,
who sent a slotket to me for
testing purposes, I was able to
try with a Celeron. So I took a
366 out of my BP6 and affixed it
to the slotket, and installed
everything in the testbed. The FSB
was set to 100, bringing it up to
the same speed as the other
processors in the test. Then I ran
the work unit again. The time
increased slightly to 5:41- which
means that it didn't all fit into
the L2 cache. However, most of it
did, and it was a lot faster than
the current client is.
So, where does this put us? For
starters, there is 2 major changes
that I see happening from a
hardware perspective. First of
all, you no longer will need 1M of
L2 cache to run Seti efficiently.
You can do it with as little as
256K, which makes the new
Coppermine an excellent choice.
Secondly, I think you no longer
have to worry about the FSB. With
previous versions, high FSB speeds
helped to make up for the fact
that the client wouldn't fit into
the L2 cache. However, since the
client is fitting into the L2 of
anything with 256K or more, this
won't play a significant role. In
fact, I think that the memory's
performance in general will be
less important, and that clock
speed will finally start to be the
deciding factor. Which means that
the Via chipset might be a very
effective alternative to the
BX.
One thing I don't have info on is
non-Intel CPUs. Which, of course,
really means AMD's. So if you have
one, now might be a good time to
try a bench run on it to see how
it performs. In the past, Athlon
CPUs have had disappointing times
for Seti, which I believe was due
to memory issues- hopefully that
will no longer be a problem. Only
time (and the finalized client)
will tell though. -Rat
Quick
status update
Hey everyone- just some quick news
on things happening on the
benchmarking front. First of
all, Things have not exactly been
idle. I've spent my time by doing
things other than frivolous thread
posts in which ColinT and hanser
threaten to beat each other
up. I've been playing with my
son, and setting up a new server.
So I'm having fun. Anyways, here's
where things stand.
The new beta client is certainly
proving to be much more reliable
than the old one. With realistic
(and fast) run times, it's much
more workable than the 2.66 client
was. It still has bugs though, as
some are reporting that some work
units are taking extremely long.
Eric Kopela is aware of the issue-
if indeed it is an issue, and not
just a result of the added
science. Intial results from a
benchmarking front are VERY good.
As in better than they have been
in the past good. I recieved a
slotket for my system today
(thanks MadMac!), and I'll be
running one last bench tonight
before posting my preliminary
findings for Intel platforms
tomorrow.
Also, with the departure of Guru
from the team, we have run across
an issue with the results page.
Specifically, the results page has
been hosted on Guru's system, and
the scripting was written by him
for the sorting. I no longer have
access to this system, and need to
come up with another option. I can
split the results up over multiple
pages and post it in the old
fashioned non-sortable way, but
that would suck. Therefore, does
anyone have the skills needed to
write a Perl or PHP script that
can do sorting like our current
table does? If so, please let me
know. Or if you just know where I
can find a table that's available,
send me a link. Thanks in advance
for any replies I might recieve. -Rat
No
pain, no gain and other modern
myths...
Interesting week, SP1 for IE 5.01
followed almost immediately by IE
5.5 (reviewed coolly at CNET)
and even the fabled Win2000 bug
fix, sorry Service Pack is due for
release imminently if you fancy
some large downloads (say
10/25/60ishMB respectively) for
the sheer pleasure of watching the
modem download stats flashing by!
Also in the modem arena there's an
new ITU standard called v.92
(upload improvement only) and also
another at v.44 for improved
software compression. If any of
you love your fans then this will
be up your alley at netkills.
I've seen cases with far more
installed but not with quite such
an eye for understated suckage.
On a personal level I am getting a
lot of pain in my left arm from a
pinched c7/c8 nerve that seems to
have returned to haunt me again
after several years absence. It
was due to a climbing accident (or
rather not climbing) - while
soloing found that I was not
capable of controlled VTOL. Good
job I landed on my head - might
have damaged something otherwise.
Ironically enough the way I get
relief is to put my head into one
of my old climbing slings and
stretch my neck. Must seem dodgy
to onlookers! Since I'm off to
Nottingham Uni for the week I
could well do without this
attention destroying pain. Though
they have computers in abundance I
am there to do some work so I
think any more ramblings will have
to be left either to RB or my
return next weekend (23rd or so).
You have been warned.
I feel a few benchmarks coming
on...not too many today, I guess
it's been a quiet week. Stefan
got back to me, well the
submission page anyway and his
K6-2 has appeared with a very
sensible time of 12:53 on a 90
bus. Not a lot you can do with
that as I'm not sure the Pchips
mobo goes much (meaning not at
all) on incremental bus speeds.
Check with the site for a bios
update (always worth a look) that
might have some user changeable
settings and try disabling the
onboard sound (worked for wyvince,
11:44). But it's still almost two
wu's a day so be pleased. Back in
the real world we have sbeikirch
who's using the GUI on a PII for a
10:30. Ditch it! Go with the Cli
and say 'bye bye' to those time
wasting graphics and watch your
times drop. Clank
is back with some more SGI MIPS
lovelies. He benched the Onyx2
again for us but with the client
running on each of the four cpu's.
Result as expected - all completed
within 66 seconds of each other
averaging 6:24. Exactly the same
as running a single instance. Big
L2 cache means no RAM bandwidth
problems as the Client data set
almost never gets to ride the
memory bus. So one cpu or four
there's no infighting for data and
it runs just as quick as if the
other three weren't there at all.
Just a real shame it has such a
low cpu clock speed (195MHz). Clank
also came across an Octane
(another very serious graphics
workstation) which has only (!)
1MB L2 but again is crippled by
the speed, a lowly 175MHz crunched
out a disappointing 8:19. Although
with two MIPS cpu's this is a very
powerful graphics SMP machine the
client is not multithreaded and
runs purely on one cpu, the
distributed nature of Seti is the
only parallel processing part of
the project. Interestingly the SGI
site info suggests the
Octane runs a MIPS 12K at 300MHz
so I wonder if this is just an
upgrade over previous older
examples or you have a crippled
runt of a beast? The mystery
deepens to at least ankle depth.
Keep sending them in. A quick time
from pboel
on a 466 Celeron (66 bus a real
brake on further progress) that's
screaming to be overclocked to 75
if you have the option. Set memory
to CAS2 in bios to go faster yet. JonT's
PII 450 coughed up a
respectable 7:15 and then he
repeated the exercise at a 112MHz
bus to skewer a 6:32. There's only
one PII that's quicker (spiffy
5:59 using a 129 bus) so I would
have to agree that's a very good
bench indeed, consider yourself
old but worthy. Sir
Rich is only 8 minutes
off the fastest Athlon title (not
a status filled position
unfortunately due to the known
woeful Seti performance of the
Athlon) with his 5:35 on a 103
bus. Perhaps you could vary the
cache speed fraction to gain a few
minutes but you are pretty much at
the end of the line with that
baby. We all (nearly all)
overclock our kit but when it
comes to the work machine then
stability usually comes first so
it's a brave Dave
who runs his PIII 450 office
system at 630/140. I always have
admired the crash and burn spirit
of our team. Anyway it cracks the
5 with a 4:55, a very respectable
time but there's a long way to go
if you want to get serious about
cooling and FSB. But as you say it
is your work machine so let's not
be to adventurous (sound like my
mother). Lastly a couple of times
from Manta70
who benched
an overclocked PIII 600E on an
Abit BH6 with CAS3 RAM (shame) at
135 to end up with a 4:51. You're
in very competitive PIII company
under the 5. Same setup but
disabling the bios shadowing (a
known tweak) dropped the time a
relatively small but useful 11
minutes to 4:40. Good stuff but
get some decent memory and lose
another 15 minutes. That's the
numbers for this evening but
before 'vamoosing' (too much High
Chaparral and not enough Virginian
- Trampas was my hero) I'd like to
thank styve
for his positive comments received
in a roundabout fashion - most
people use email these days!
Max
out.
Life
discovered on benchmark page...
Good evening to those of
you on the other side of the
screen. At last SetiSpy
has gone to 2.5.2 and the history
shows 23 minor and not so minor
revisions. Going straight into the
times brings me to styve
who produced a 19:08 on a 249MHz
K6 (83 bus) which is okay and then
put an overclocked P233MMX into
the same board and came up smiling
with 16:36. I hope I got your
numbers right from the submissions
- corrections always welcome. A
seriously useful speed up for Geordie
and that dual PIII Supermicro
system with a new bios. Getting
the FSB up from 100 to 112 has
dropped the time from 8:46 to 7:45
for two completed bench wu's.
Excellent outcome. It's the bus
increase that has improved the
time but no harm in checking you
have the newest bios available.
Though new bioses generally just
allow compatibility with new
hardware they can occasionally
provide a efficiency boost, so
stay up to date. Next up is litespeeds
Celeron II up from 566 to 850MHz
which lays down a lazy 7:06. As is
the case with the Celerons big cpu
clocks - they always play third
fiddle to the FSB and memory CAS
settings. Now start chipping away
the 'default' (bios and RAM)
presets and get that time down
another 30 minutes at least. Some
notebook benching from Exchequer
who used a ramdisk on a Dell
Inspiron (450 PIII) and received a
6:58 for reward. Notebooks and
ramdisks are well suited as the
RAM uses a lot less power than
keeping the hard drive spinning,
but don't expect any speed
benefit! This time is pleasingly
similar to Actions
6:56 from a while back on a
similar machine. Clank
came up with a rare piece of power
graphics kit, an SGI Onyx2, but
since the client is not cache
limited (MIPS R10K processors come
with 4MB) it's bench speed is
going to be dictated by the cpu
clock. Hence your heavy duty
hardware running at a meagre
195MHz is never going to light up
any Christmas trees as the 6:24
bench shows. In effect it's
roughly comparable to a Xeon but
with a slow clock, shame. On the
upside a beast like this has huge
overhead, you could run a client
on each of the four processors and
still end up with 6:24! Take
comfort in that thought. Next up
is Joker
who related his server problems in
a forum
thread, not an electrifying
read but a link is a link (though Redbeards'
comments should be standard
practice for most of you). After a
reinstall Jokers
PIII spat out a very respectable
5:32. Stilgar submitted a 5:30
squeezed from a PIII/Win98
combination (common as muck, but
only because I'm a jealous Celery
owner) - changing from the 2.0 to
2.4 client and upping the bus from
120 to 122 has apparently done
nothing for you in terms of time,
a little odd, should be worth a
few minutes at least. Nearing the
end of this evenings (I always
work at night) offerings is Jtrinkle
and
a pleasant sub 5 (4:55) on yet
another ferociously OC'd PIII, but
as you comment you certainly could
do better...perhaps another 20
minutes to prune off yet. Getting
ever closer to the 4 hour barrier
on a overclocked PIII (!!!) is Endless
with a blazing 4:06. A 550E at 154
bus on an Abit BE6, CAS2 RAM (at
last at this FSB) and Win98
appears to be the magic
combination. I await the sceptics
mailbag with trepidation. Finally
on benchmark matters, Stefan
could you get in touch as I'm
pretty sure you didn't mean the
time you submitted, thanks. Extra
finally, If you cannot find your
times, we are aware that the
results are lagging behing my
words and it's being 'worked'
upon!
It's been suggested that a
2.66 beta client bench page would
be in order...I struggle to keep
up with this one! So don't expect
too much enthusiasm from me until
2.66 becomes v3 official and we
start a new results page proper.
Always open to suggestions but
since the beta is at present very
slow (double or more) due to huge
cpu switching it seems likely that
it will be rapidly updated with
amended versions, I hope! zAmboni
is keeping you very up to date
with his progress and that is
sufficient for the present.
Surprisingly that suggests I have
a life, hard to believe. Right,
I can go off to bed happy now.
Max
out.
Touchy
Feely Huggy type stuff...
I
will put up some benchmark numbers
soon (small backlog) but just felt
like writing some words today,
please forgive me (drops to knees
and quietly sobs). Roelof
(he of SetiSpy)
gave me a nudge about a couple of
things but since I was going to
mention them anyway I don't mind
the attempt at self-aggrandisement.
Envelope full of unmarked currency
soon please. Firstly the
proprietary Engelbrecht
CpF
vs. CPU Multiplier graph has
been updated with new Celery II,
Xeon and K6-3 plots. Secondly
there is a beta version of 2.5.1
on the SetiSpy
page. It has several interesting
new features including more
performance info, an extra graph
on the results tab, the processor
comparison table has been
re-modeled and allows a
personalised multiplier to suit
your own system. Also the sky map
shows the telescope path (though a
straight line is not very
informative - something missing I
think) and there's a new logging
feature on the set-up tab for
saving graphics. Other minor
changes I'll leave to you to
discover and though beta I haven't
needed the insecticide yet. So
much info and usefulness packed
into something so small - I am
unashamedly a fan. If only it
downloaded and cached wu's
perfection would be in my grasp.
Though I personally am already
there. Naturally.
So in the last few weeks we've had
SetiHide
(1.3), SetiDriver
(v1.21 claims compatibility with
SetiSpy) and now SetiStash
(v1.1) which I noticed being
referred to in the forum
by ColinT
(of course). It's a caching
program written by one of the
Knights Who Say Ni! (KWSN
- just in case) aimed at dial-up
connection users and works in
conjunction with SetiLog.
Early days in its development so
if it doesn't quite meet
requirements you can be sure there
will be revisions to
come. All these goodies -
wonderful!
Noted on overclockers.com
7/2/00- "I have a question.
Some of you are using all kinds of
radiators found in cars for
industrial-strength coolers. While
I realize this isn't exactly an
iMac crowd :), how many of you are
doing this, and do the rest of you
want to know how?" Next step
- anyone got a standby generator
in the backyard because you don't
trust the UPS to keep you powered
up for Seti?
In TLC things have been getting
kind of hectic: stats for all; Art
Bell passed; dedicated
forum appears; Rat
and zAmboni
get some recognition from Caesar;
Guru
leaves, cratering totals and
knowledge base; CES
pops up out of the swamp with big
ideas (hi!); RB
& Caesar
& zAmboni
get together and talk (good). Big
posting traffic in forum about
these events with almost all being
enlightening and thoughtful (as
you expect with the TLC
crew), which even on the bad days
makes me feel there's something
fun and worthwhile going on here.
Some of the most interesting
details have been the background
history of Ars
TLC, its setting up,
co-ordination (and obvious lack
of) and subsequent development
into the monster mutant offshoot
it has become - reminiscent of the
scene in 'Alien Resurrection'
where the albino newborn says 'hi'
to Mum. Most of my views have been
covered adequately by others so
there's a lot I don't need to say,
saves a thousand or so words.
Recently zAmboni
replied to a series of posts on
the alt.sci.seti
newsgroup from Trust
No One (29/6/00) and I
was surprised how unpleasant it
felt reading about the stats
integrity (and by inference TLC)
being questioned in such an
ignorant way. Rat
and zAmboni
need your support and it's been
good to see how much there is
available. By losing a few team
places I feel it's a new challenge
rather than a major downer and is
a re-injection of the competitive
spirit that could quite easily
have calmed after passing Art
Bell. The apparent
negatives of the last few days
have just reinforced my views
about the positive spirit and
lively nature of this place. Keep
benching, keep me humming and do
what you enjoy.
Max
out.
What,
another one...it must be the
weekend already!
Yet
more numerical goodies to lay at
the feet of you good people. No
farting about with an attempt to
educate or enlighten in other
spheres today just the lovin'
spoonful of hardened bluesy
benchmarks. Busy Al
Bartenstein
(any relation to Mad Al Jankovitz?
Remember the cover of Michael
Jackson's 'bench it' all those
years ago) - sorry wrong
planet...completely lost it, back
to benchmarks. As I was saying Al
Bartenstein
is not a person to retire old
hardware gracefully and has been
putting Pentiums to the sword. A
P75 running at 100MHz clock threw
up a 39:53 which has just edged
his Cyrix 133 by 3 mins (39:56).
At this end of the table almost
anything goes and the three
minutes might just have been a
cold draught blowing over the
chip! As long as your happy to
lord over some other piece of old
architecture then that's okay.
Fast is fun, slow just is. They
all get there in the end, I hope.
Next in Al's
locker is a P166 on an 'old
motherboard' (!) that offered a
25:31 which in turn was roundly
thrashed by an hour (24:30) by an
overclocked P120 (to 133).
Surprising on the face of it
except the lower multiplier and
use of SDRAM more than make up for
the unimportant clock difference.
Astute readers (both of 'em) will
notice that when I read 'old mobo'
in the comments I assume they are
indeed talking DX vintage memory
as well. Finally Al
has unearthed a 233 IBM ThinkPad,
serious kit 18 months ago, which
commendably managed an 18:37. Now
here's a place for a RamDisk -
allowing the HD to be powered
down, conserving batteries. But
only if you can't be bothered to
reach over to that wall socket.
All of Al's systems ran RedHat
6.1, ideally suited to slower
machines due to lower OS overheads
and considerable efficiency
compared to Windows in a
restrictive environment. Long live
Linux. Before continuing here's
a...
K6
benchmark special...
Here in the middle kingdom of
times (10 to 20 hours) talaktalan
rules the AMD roost in numerical
terms returning a stonking nine
benchmarks at one sitting
(collective noun a 'gluttage').
All use a 400MHz K6-3 with 96MB
CAS3 RAM running the 2.4 client on
Win98 which is the simple baseline
config. stuff. Taking them in
groups of three as I think he
intends the slowest is 21:36 with
the 2MB L3 cache disabled, a FSB
of 100 but the RAM at 66
(non-synchronous). Note: L3 by AMD
convention (Intel would demur) is
on board, i.e. memory specifically
added to the motherboard and
dedicated to the cpu in an effort
to improve performance on chips
with little or no on die (L2)
cache. Next step is to synchronize
the FSB and RAM (both now at 66)
which drops the time to 19:55.
Finally in this group have memory
and FSB running at 100Mhz to yield
16:16. As usual faster bus quicker
time but also better to be
synchronized on a slower bus than
faster bus and get cache misses
due to non-synchronization. I hope
this is making sense to K6 owners
at least! I'm sure my mail box
will put me right by tomorrow!
Next group of three disables the
L2 cache (the on die stuff, small
but fast memory located intimately
within the CPU chip architecture),
which apparently approximates a
K6-2. Running everything at 66MHz
produces a 16:27. Now keep
the RAM at 66 but put the FSB to
100 (non-synchronous) to get a
time of 12.09, a very useful
difference. Finally memory and FSB
at 100MHz gives 11:40 which shows
that if the L2 is disabled there
is a small loss of efficiency by
running non-synchronous memory and
FSB.
Final group of three leaves
L2 and L3 running. Firstly in
synchronous mode at 66Mhz comes in
at 11:46 and with FSB 100 and
memory at 66 a big jump to 9:46.
Lastly synchronous at 100MHz romps
home to 9:26. So there you have it
how to from 21:36 to 9:26 on what
is in essence the same hardware
running at identical clock speeds.
The major effect of cache is
clearly shown by the big time
differences and also the small but
significant downside of running
memory and FSB at different
values. It would be worth K6
owners checking their bios and
board settings as you could be
returning apparently reasonable
times (11 - 12 hrs) while having
the L2 disabled! Just a thought.
Thanks to talaktalan
for all those benchmarks. If I
missed something important let me
know!
...and
back in the real world.
A big jump now to several happy
chappies. First is fsgray
and that Celeron II again. Using a
VIA 133 board allows a 100 MHz FSB
while using a 133 Memory bus (4/3
divider), being a creature of BX
vintage I am very jealous. Overall
result is 6:32 an excellent
improvement of 52 minutes from the
last benchmark. But before you go
all dewey eyed on me, there are
several tweaked Celerons ahead of
you running Win98 to your Win2K.
So that's the next the next speed
step which should be good for
another 20 minutes. Isn't freedom
of choice wonderful (a great album
by DEVO as well, especially 'gates
of steel').
Another very happy bunny is Jeremy
Crawford
who changed mobo to a BE6-II
allowing him to up the FSB from
117 to 126 in turn knocking 36
minutes off to record 5:13. What
next from this eager bencher?
Coming in at 4:48 system
has
pleasantly cracked the 5 with a
Coppermine PIII on a 138 bus
(897MHz clock), you are in good
company here with hordes of
similar cpu's pushing out very
respectable times. Bus is the only
way to go if you can push it. Next
up is Isobe
& garbage machines (great
name) marginally overclocked Mac
G4 at 4:38. No pointless chip
snobbery here, Mac's run Seti
extremely well due to large cache
(mainly) and a smaller, more
efficient instruction set. Marzio
Nieddu
has benched Win98SE for us on his
1085MHz PIII and not too
surprisingly knocked 14 minutes
off his Win2K time to post a
superb 4:09. Think that's end of
the line for speed-ups on your
machine, please prove me wrong!
While in the area Marzio
also ran Win Millennium (rc2) and
recorded the same time (well, 9
seconds slower if you really need
that level of detail). Since ME is
just a repackaged Win98 with a
slightly cleaner interface that's
not surprising, Win98 Third
Edition would be a more accurate
title. ME still has all the legacy
baggage underneath so don't expect
any speed up from this 'new' OS.
To round off this collection of
benchmarks off Hance_wu
has breached the 4 on a Dell
packaged Quad Xeon, 4 clients (one
per cpu) running on NT4 came in at
3:54. Great fun to be had putting
the office furniture under the Ars
WU hammer.
Endless
could you get in touch about that
yummy PIII time, thanks. There
must be many of you who are
beginning to think that your job
is actually to run and tend Seti
farms, good for TLC but only
if legal, moral and within
your objective control. Keep TLC
clean, especially now that Art
Bell has fallen and the next on
the list is so far off that the
temptation to cut corners must be
strong. Moralizing over. If anyone
is in the Bedford area (fat
chance) on Sunday morning come
along to the Triathlon and say
'hi'. I'm less objectionable in
person!
Max
out.
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