Re: excessive use of gettimeofday(2) and other syscalls

看板FB_hackers作者時間14年前 (2011/09/10 03:01), 編輯推噓0(000)
留言0則, 0人參與, 最新討論串15/16 (看更多)
On Fri Sep 9 11, Dieter BSD wrote: > >> Firefox 5 and 6 has more gettimeofday call than 20000 per second on my > >> amd64-8.2-stable box. > > > i don't see why chromium needs > > to call gettimeofday(2) or any library function that triggers it more > > than 3000 times a second. > > What the <BLEEP> are web browsers doing that they "need" the clock > so often? > > I suspect the answer is the same as why firefox uses significant amounts > of CPU when it should be idle, why it uses memory without bound > (I actually had to add ulimit to my shell's rc file :-( ), and > so on. > > Using "links -g", > "ktrace -di -tc -p6951; sleep 1; ktrace -C; kdump|wc -l" > gives a typical count of 300-400, highest count seen: 1454. well that measurement is probably unfair. my measurements included all opened tabs (~ 15), running plugins and extensions. if i disable all of those extra stuff and use only a single tab, chromium produces less syscalls than links: 270 cheers. alex > > What we need, is a sanely written web browser that has the > features we need. Unfortunately the last time I checked, > links and dillo both lacked features needed for online > shopping/banking. _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org"
文章代碼(AID): #1EQc9lQB (FB_hackers)
討論串 (同標題文章)
完整討論串 (本文為第 15 之 16 篇):
文章代碼(AID): #1EQc9lQB (FB_hackers)