>> The locking of walking the tasklist seems non-trivial, but we may well
>> end up with something like that. By the time you finish, it looks more
>> like a /dev device thing than /proc (which I'm fine with), and looks
>
> Can people just oprofile this instead of guessing? Opening a file is not
> very expensive anymore, so if ps is noticeably slow, it must be something
> else.
>
> 'To measure is to know'
Errm... we have profiled it. Look at the subject line ... this started
off as a dcache_rcu discussion. The dcache lookup ain't cheap, for
starters, but that's not really the problem ... it's O(number of tasks),
which sucks.
M.
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This archive was generated by hypermail 2b29 : Thu Nov 07 2002 - 22:00:40 EST