LI Xin пишет:
Paul Lathrop wrote:
Taras Savchuk wrote:
Hi to ALL!
I have dovecot-1.0r7 installed on FreeBSD 6.1, using kqueue and Maildir (<20 mailboxes, < 0,5 Gb size). Periodically CPU load of imap processes increasing up to 60-80%. Is it normall behavior or not? May be somebody had such kind of problems?
I have also experienced this behavior, which is quite bothersome because I sold my supervisor on Dovecot by talking about performance and low resource requirements...
What if you get some output from ktrace/kdump? Additionally, try to force the process to save a coredump and investigate its .core with gdb would help tracking down the issue...
Note that because when using kqueue the process should get a "kqread" if it is waiting for kqueue event. If the process is stuck in "RUN" state then a coredump would be more helpful.
Cheers,
~20000 calls to gettimeofday() per second. Is it normall?
mail2# cat k.dov.l.txt | grep CALL | grep gettimeofday | wc -l 1195552 mail2# head -n 1 k.dov.l.txt 20910 imap 0.000000 CALL gettimeofday(0x80c2c60,0x80c2c68) mail2# tail -n 1 k.dov.l.txt 20910 imap 51.826065 RET gettimeofday 0
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