Date: Sat, 03 Nov 2018 16:37:15 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 232940] Investigate poor ncsd performance reported in bug 230491 Message-ID: <bug-232940-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D232940 Bug ID: 232940 Summary: Investigate poor ncsd performance reported in bug 230491 Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Keywords: needs-qa, patch, performance Severity: Affects Only Me Priority: --- Component: bin Assignee: bugs@FreeBSD.org Reporter: cem@freebsd.org CC: bugs@FreeBSD.org, cem@freebsd.org, gad@FreeBSD.org, tom@hur.st Depends on: 230491 See comments #2, 5, 6, and 14 on bug 230491. > The built-in caching doesn't seem useful for this case. Enabling it resu= lts in a test run creating this unfortunate entry in top: > > 63957 root 9 52 0 24000K 4696K uwait 19 9:15 268.91% = nscd > > and actually *slows down* stat(1) in my tests - /usr/src goes from 22 sec= onds to almost 90, and my CVS repository scan goes from 55 seconds to 2 min= utes. > Reducing thread count improves performance with nscd, but at "threads 1" = it's still 52s vs 22s uncached. Referenced Bugs: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D230491 [Bug 230491] stat(1): Improve performance with getpwuid() and getgrgid() caching --=20 You are receiving this mail because: You are on the CC list for the bug. You are the assignee for the bug.=
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