Re: Fine-grained locking for POSIX local sockets (UNIX domain sockets)

Sven Petai wrote:
scheduler: ULE
thr_lib socket nice queries threads update select
thr unix 0 10000 100 4779 13724
thr unix 0 100000 10 6473 25172
thr unix -10 10000 100 4969 20662
thr unix -10 100000 10 6418 25204

==== Linux ====
suse - suse enterprise linux 9 with kernel 2.6.5-7.97-smp, mysql
4.0.18-32.1, reiserfs
fedora - fedora core with kernel 2.6.9-22-ELsmp, mysql 4.1.12, ext3

distro queries threads update select
suse 10000 100 10047* 76857
fedora 10000 100 8072* 67000

The difference in performance is just ridiculous. Is mysql written to be slow on freebsd or is there a problem with freebsd?

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Relevant Pages

  • Re: Fine-grained locking for POSIX local sockets (UNIX domain sockets)
    ... thr_lib socket nice queries threads update select ... suse - suse enterprise linux 9 with kernel 2.6.5-7.97-smp, ... Is mysql written to be slow on freebsd or is there a problem with freebsd? ...
    (freebsd-current)
  • Re: Fine-grained locking for POSIX local sockets (UNIX domain sockets)
    ... Kris reported much increased contention on locks within the process when running with my patch. ... It would be interesting to know what the effect on average query time is -- perhaps it has gone down and we're looking at increased scheduler related contention. ... I've noticed that MySQL bennchmarking is heavily affected by test run time and order. ... thr_lib nice queries threads update select ...
    (freebsd-current)
  • Re: Fine-grained locking for POSIX local sockets (UNIX domain sockets)
    ... Kris reported much increased contention on locks within the process when running with my patch. ... It would be interesting to know what the effect on average query time is -- perhaps it has gone down and we're looking at increased scheduler related contention. ... I've noticed that MySQL bennchmarking is heavily affected by test run time and order. ... thr_lib nice queries threads update select ...
    (freebsd-performance)