Re: System perforamance 4.x vs. 5.x and 6.x

Kris Kennaway wrote:
Brett Bump wrote:

On Thu, 14 Feb 2008, Kris Kennaway wrote:

We are going to need more information about your system. What do you
mean by "peak activity"? What is running on the system when it performs
badly (check top -S, ps, gstat, vmstat -w, vmstat -i). What is your
kernel configuration, dmesg and relevant aspects of the system
configuration?

Kris


I would call 120 processes with a load average of 0.03 and 99.9 idle
with 10-20 sendmail processes and 30 apache jobs nothing to write home
about. But when that jumps to 250 processes, a load average of 30 with
50% idle (5-10 second waits on single character ssh echo) a bit busy.
That usually means my heavy pop3 users are checking in at the same time
someone (or 2 or 3) have sent email to the large volume listservs. Proc
stat doesn't show as much as gstat and iostat. Gstat alwasy shows my
drive with /var/mail being 97-100% busy and iostat will always show hi
tps rates, but never anything above 8MB/s (4.10 gave me 30MB/s+).

Kernel is generic with ipfirewall quota and smp (no ipfw rules yet).

OK, then you definitely need to update to 6.3, quota support in older releases had performance problems.

Actually I am not sure it was possible to merge it to 6.x, it is definitely in 7.0 though.

Kris

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Relevant Pages

  • Re: System perforamance 4.x vs. 5.x and 6.x
    ... kernel configuration, dmesg and relevant aspects of the system ... stat doesn't show as much as gstat and iostat. ... Kernel is generic with ipfirewall quota and smp. ... httpd in malloc: error: recursive call ...
    (freebsd-performance)
  • Re: System perforamance 4.x vs. 5.x and 6.x
    ... kernel configuration, dmesg and relevant aspects of the system ... stat doesn't show as much as gstat and iostat. ... Kernel is generic with ipfirewall quota and smp. ... OK, then you definitely need to update to 6.3, quota support in older releases had performance problems. ...
    (freebsd-performance)