On tor, 2007-11-15 at 08:24 +0200, Dave Raven wrote:
> I understand that squid would favour only one processor, yet with SMP
> on it
> lasts 3x longer. My guess would be that's its because the diskd
> processes
> are able to use more than one processor? Except their cpu usage never
> goes
> over ~
;; squid-users@squid-cache.org
Subject: RE: [squid-users] Squid Performance (with Polygraph)
On ons, 2007-11-14 at 14:29 +0200, Dave Raven wrote:
> Will do - I'll setup polymix-4 tomorrow and try starting on a full
> cache. Something interesting though - my processor usage neve
On ons, 2007-11-14 at 14:29 +0200, Dave Raven wrote:
> Will do - I'll setup polymix-4 tomorrow and try starting on a full
> cache. Something interesting though - my processor usage never really gets
> over 50% or so (SMP or single processor) until it crashes; but with SMP
> 800RPS lasts 200+
On Wed, Nov 14, 2007, Tek Bahadur Limbu wrote:
> Also your FreeBSD version 4.x might have also made the difference!
Its entirely possible - you have to remember that FreeBSD-4.x only
allows one process to be in "kernel space" at one time; its entirely
possible that avoids various race conditions
nutes...
Thanks
Dave
-Original Message-
From: Adrian Chadd [mailto:[EMAIL PROTECTED]
Sent: Wednesday, November 14, 2007 1:51 PM
To: Dave Raven
Cc: 'Adrian Chadd'; squid-users@squid-cache.org
Subject: Re: [squid-users] Squid Performance (with Polygraph)
What you may need to do is r
nal Message-
From: Tek Bahadur Limbu [mailto:[EMAIL PROTECTED]
Sent: Wednesday, November 14, 2007 1:48 PM
To: Dave Raven
Cc: 'John Moylan'; 'squid-users'
Subject: Re: [squid-users] Squid Performance (with Polygraph)
Hi Dave,
Dave Raven wrote:
> I have seen the error messages b
nesday, November 14, 2007 12:39 PM
> To: Dave Raven
> Subject: Re: [squid-users] Squid Performance (with Polygraph)
>
>
> Doesn't diskd have a bug whereby it has issues under heavy load.
> http://www.squid-cache.org/bugs/show_bug.cgi?id=761 . If so, I am
> surprised that i
EMAIL PROTECTED] On Behalf Of John Moylan
Sent: Wednesday, November 14, 2007 12:39 PM
To: Dave Raven
Subject: Re: [squid-users] Squid Performance (with Polygraph)
Doesn't diskd have a bug whereby it has issues under heavy load.
http://www.squid-cache.org/bugs/show_bug.cgi?id=761 . If so, I am
surpris
a slow, steady, predictable pattern? If it was
> plateau'ing like originally suggested I'd agree it's obviously hitting a
> limit - but my "rawio" tests show each drive is capable of 450 random
> writes/reads per second which is far higher than its doing.
>
>
: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Moylan
Sent: Wednesday, November 14, 2007 12:39 PM
To: Dave Raven
Subject: Re: [squid-users] Squid Performance (with Polygraph)
Doesn't diskd have a bug whereby it has issues under heavy load.
http://www.squid-cache.org/bugs/show_bug.c
each drive is capable of 450 random
writes/reads per second which is far higher than its doing.
Thanks
Dave
-Original Message-
From: Adrian Chadd [mailto:[EMAIL PROTECTED]
Sent: Saturday, November 10, 2007 12:13 AM
To: Dave Raven
Cc: 'Adrian Chadd'; squid-users@squid-cache.or
On Fri, Nov 09, 2007, Dave Raven wrote:
> Hi Adrian,
>
> It works for the full 4 hours with a null cache directory. How would
> I see any kind of stats/information on disk IO? From the stats I can see so
> far, the disk stats don't change at all when it fails ...
That'd be because you're pr
es - but 82 minutes ??
Thanks for all the help
Dave
-Original Message-
From: Adrian Chadd [mailto:[EMAIL PROTECTED]
Sent: Friday, November 09, 2007 11:55 AM
To: Dave Raven
Cc: 'Adrian Chadd'; squid-users@squid-cache.org
Subject: Re: [squid-users] Squid Performance (with Polygraph)
h ufs and diskd (with
the same results, just different times that it fails after).
Thanks
Dave
-Original Message-
From: Adrian Chadd [mailto:[EMAIL PROTECTED]
Sent: Friday, November 09, 2007 3:35 PM
To: Dave Raven
Cc: squid-users@squid-cache.org
Subject: Re: [squid-users] Squid Performance
isk load. The
> entire time the disks are very underloaded. That said, if I use a null cache
> directory this doesn't happen
>
> I know that sounds like its clearly drives - but 82 minutes ??
>
> Thanks for all the help
> Dave
>
> -----Original Message-
>
ave
-Original Message-
From: Adrian Chadd [mailto:[EMAIL PROTECTED]
Sent: Friday, November 09, 2007 11:55 AM
To: Dave Raven
Cc: 'Adrian Chadd'; squid-users@squid-cache.org
Subject: Re: [squid-users] Squid Performance (with Polygraph)
Check netstat -mb and see if you're run
November 09, 2007 4:08 AM
> To: Dave Raven
> Cc: squid-users@squid-cache.org
> Subject: Re: [squid-users] Squid Performance (with Polygraph)
>
> On Thu, Nov 08, 2007, Dave Raven wrote:
> > Hi Adrian,
> > What would cause it to fail after a specific time though - if the
>
9, 2007 4:08 AM
To: Dave Raven
Cc: squid-users@squid-cache.org
Subject: Re: [squid-users] Squid Performance (with Polygraph)
On Thu, Nov 08, 2007, Dave Raven wrote:
Hi Adrian,
What would cause it to fail after a specific time though - if the
cache_mem
is already full and its using the drive
Raven
Cc: squid-users@squid-cache.org
Subject: Re: [squid-users] Squid Performance (with Polygraph)
On Thu, Nov 08, 2007, Dave Raven wrote:
> Hi Adrian,
> What would cause it to fail after a specific time though - if the
cache_mem
> is already full and its using the drives? I would ha
On Thu, Nov 08, 2007, Dave Raven wrote:
> Hi Adrian,
> What would cause it to fail after a specific time though - if the cache_mem
> is already full and its using the drives? I would have thought it would fail
> immediately ?
>
> Also there are no log messages about failures or anything...
Who
Chadd [mailto:[EMAIL PROTECTED]
Sent: Thursday, November 08, 2007 8:05 PM
To: Dave Raven
Cc: 'Adrian Chadd'; squid-users@squid-cache.org
Subject: Re: [squid-users] Squid Performance (with Polygraph)
On Thu, Nov 08, 2007, Dave Raven wrote:
> Hi Adrian,
> I've got diskd conf
On Thu, Nov 08, 2007, Dave Raven wrote:
> Hi Adrian,
> I've got diskd configured to be used for objects over 500k - the
> datacomm run is all 13K objects so essentially it's doing nothing.
> Interestingly though I see the same stuff if I use ufs only, or just diskd.
Ok.
> I am using kqueue
add'; squid-users@squid-cache.org
Subject: Re: [squid-users] Squid Performance (with Polygraph)
On Thu, Nov 08, 2007, Dave Raven wrote:
> Hi,
> I've been looking for a way to do the profiling, but I'm stuck with
> FreeBSD 4 - any ideas? Cache_mem is at 96mb, its almost
On Thu, Nov 08, 2007, Dave Raven wrote:
> Hi,
> I've been looking for a way to do the profiling, but I'm stuck with
> FreeBSD 4 - any ideas? Cache_mem is at 96mb, its almost definitely getting
> filled immediately - I've also tried setting it to 8 just to be sure, no
> difference...
Hm. Fre
-- disk IO I can see with iostat, it seems to
stay the same even after my slow down period...
Thanks
Dave
-Original Message-
From: Adrian Chadd [mailto:[EMAIL PROTECTED]
Sent: Thursday, November 08, 2007 5:17 PM
To: Dave Raven
Cc: squid-users@squid-cache.org
Subject: Re: [squid-users] Squ
Do some system-level profiling runs (oprofile under Linux, dtrace under
Solaris) during the fill phase, the disk intensive phase and the disk
overload phase. Are you graphing statistics? Can you graph stuff like
CPU, swapping/paging, disk IO?
Whats cache_mem set to?
Adrian
On Thu, Nov 08, 200
Hi all,
I'm busy testing a squid box with 8xSATA drives, 4gig of DDRII
memory and 2x 2.6gig dual core processors. I'm using the basic datacomm test
from polygraph. I've configured 6 of the drives to use COSS, and the other
two diskd (I've also done basic ufs tests). During all of the tests
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