page faults
From: Alexander Trubin (atr_at_ngw.compcent.usu.ru)
Date: 08/22/05
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Date: Mon, 22 Aug 2005 13:11:32 +0600 To: freebsd-performance@freebsd.org
hi
i have a server amd64 athlon 3000+ with 1GB ram
(dmesg,config can be found here: http://spm.usu.ru/_amd64/).
FreeBSD 5.4 amd64
running this script while server is idle:
while 1
ls > /dev/null
end
gives me the following output of vmstat -w 1
hst# vmstat -w 1
procs memory page disks faults
cpu
r b w avm fre flt re pi po fr sr ad4 ad6 in sy cs us sy id
0 1 0 550608 86704 0 0 0 0 0 0 0 0 2174 176 2116 0 2 98
1 1 0 550848 86596 25111 0 0 0 22879 0 0 0 2177 59365 4057 17 35 48
1 1 0 550608 86704 50879 0 0 0 46406 0 0 0 2159 119742 5873 38 62 0
0 1 1 550608 86704 50898 0 0 0 46407 0 0 0 2153 119890 5872 38 62 0
1 1 0 550844 86616 50912 0 0 0 46408 0 0 0 2156 120020 5774 36 64 0
1 1 0 550608 86704 50884 0 0 0 46408 0 0 0 2162 119745 5841 33 67 0
...
doing the same thing on freebsd 5.4,4.11 on i386 produces much less
number of flt(page faults) which rarely goes above 4000-5000.
I'm just trying to tune my apache with cgi version of php, which now
have not so good performance. Is the high number of page faults ok on
amd64? If not, what can be the reason and how can i reduce it ? i can
provide any additional information.
thanks in advance.
-- Alexandr S Trubin _______________________________________________ freebsd-performance@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-performance To unsubscribe, send any mail to "freebsd-performance-unsubscribe@freebsd.org"
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