I have my SMP(dual) box running -current at home for local news and
mail/ML server. Last night, when the news-mail gateway started to feed
the articles to the MLs, I noticed that the ratio of CPU time usage
for system call exceeded more than 50%, showing 55-60% every now and
then. The frequencies of system call and interrupt are both around
13-18[k/sec]. (NB HZ in my box is increased up to 16kHz)
I once thought something might be wrong, and then found
(ALT)SYSCALL_LOCK spinning to wait for the lock to be released. Now I
am wondering if we can contribute spinning time to anything else, say
running another process, before the lock gets released. Is is possible
to do so?
--
Seigo Tanimura <[EMAIL PROTECTED]> <[EMAIL PROTECTED]>
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