Jeremy Chadwick wrote:
> On Fri, Dec 07, 2007 at 08:44:37AM +0100, Patrick van Iersel wrote:
>>> From: Eugene Grosbein <[EMAIL PROTECTED]>
>>> See http://www.freebsd.org/cgi/query-pr.cgi?pr=75855
>>> It seems the regression from RELENG_4 is still here.
>>>
>>> There are so many regressions in perfo
On Friday 07 December 2007, Eugene Grosbein wrote:
> > I would like to point out that in FreeBSD 7.x there is a daemon called
> > nscd. I believe it was created exactly for this purpose (speeding up name
> > lookups by caching them).
>
> Is it true that 4.x has nearly O(n) lookup speed while later
> I would like to point out that in FreeBSD 7.x there is a daemon called nscd.
> I
> believe it was created exactly for this purpose (speeding up name lookups by
> caching them).
Is it true that 4.x has nearly O(n) lookup speed while later versions
has O(n^2) method? Why 4.x does not need cach
On Friday 07 December 2007, Jeremy Chadwick wrote:
> On Fri, Dec 07, 2007 at 08:44:37AM +0100, Patrick van Iersel wrote:
> > > From: Eugene Grosbein <[EMAIL PROTECTED]>
> > > See http://www.freebsd.org/cgi/query-pr.cgi?pr=75855
> > > It seems the regression from RELENG_4 is still here.
> > >
> > >
> From: Eugene Grosbein <[EMAIL PROTECTED]>
> Date: Fri, 7 Dec 2007 14:48:47 +0700
> To: Patrick van Iersel <[EMAIL PROTECTED]>
> Cc: freebsd-stable@FreeBSD.org
> Subject: Re: Extreme load with local password db lookups
>
> On Fri, Dec 07, 2007 at 08:44:37A
On Fri, Dec 07, 2007 at 08:44:37AM +0100, Patrick van Iersel wrote:
> > From: Eugene Grosbein <[EMAIL PROTECTED]>
> > See http://www.freebsd.org/cgi/query-pr.cgi?pr=75855
> > It seems the regression from RELENG_4 is still here.
> >
> > There are so many regressions in performance that I still
> >
On Fri, Dec 07, 2007 at 08:44:37AM +0100, Patrick van Iersel wrote:
> > See http://www.freebsd.org/cgi/query-pr.cgi?pr=75855
> > It seems the regression from RELENG_4 is still here.
> >
> > There are so many regressions in performance that I still
> > prefer to invest time to patch bsd.ports.mk t
> From: Eugene Grosbein <[EMAIL PROTECTED]>
> Organization: SVZServ
> Date: Fri, 07 Dec 2007 12:40:42 +0700
> To: Jeremy Chadwick <[EMAIL PROTECTED]>
> Cc: Patrick van Iersel <[EMAIL PROTECTED]>, freebsd-stable@FreeBSD.org
> Subject: Re: Extreme load with l
Jeremy Chadwick wrote:
> > > Here's the situation. We have an web/ftp server with around 74000 users
> > > defined in the local unix password database. On 4.9-stable which it is
> > > running now, there is no noticable load when lookups are done (logins via
> > > ftp, ~user lookups from apache etc
t;>> group: files
>>> passwd: files
>>>
>>
>> The default value is "compat" on both RELENG_6 and RELENG_7. I don't
>> think switching to "files" will fix his problem (I'll be very surprised
>> if it does).
>>
A common way to debug is to isolate the affected systemcalls, by using
tools like ktrace or strace.
Strace can also record a timestamp, you can see how long it takes to
complete a specific systemcall
# strace -r -f
Do a single login and then examine the results.
happy debugging.
regards,
Den
Patrick van Iersel wrote:
> However on 6-STABLE (FreeBSD 6.3-PRERELEASE #0: Wed Dec 5 13:35:05 CET
> 2007) these same lookups cause very high load and things slow down to a
> crawl.
Hi,
How do you know it's the passwd lookups that cause the problems? (I'm
not saying they're not...)
signature
On Thu, Dec 06, 2007 at 06:22:07PM +0700, Eugene Grosbein wrote:
> On Thu, Dec 06, 2007 at 11:37:50AM +0100, Patrick van Iersel wrote:
>
> > Here's the situation. We have an web/ftp server with around 74000 users
> > defined in the local unix password database. On 4.9-stable which it is
> > runnin
On Thu, Dec 06, 2007 at 11:37:50AM +0100, Patrick van Iersel wrote:
> Here's the situation. We have an web/ftp server with around 74000 users
> defined in the local unix password database. On 4.9-stable which it is
> running now, there is no noticable load when lookups are done (logins via
> ftp,
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