Messages in this thread | | | Date | Mon, 24 Mar 2003 01:03:21 -0800 | From | William Lee Irwin III <> | Subject | Re: lmbench results for 2.4 and 2.5 -- updated results |
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Chris Friesen <cfriesen@nortelnetworks.com> wrote: >> The ones that stand out are: >> --fork/exec (due to rmap I assume?) >> --mmap (also due to rmap?)
On Mon, Mar 24, 2003 at 08:39:34AM +0000, Linus Torvalds wrote: > Yes. You could try the objrmap patches, they are supposed to help. They > may be in -mm, I'm not sure.
I recently asked Randy Hron which 2.5.x patches made the biggest difference in the tests he's done. He pasted the following:
<hrandoz:#kernelnewbies> null null + open signal signal fork execve /bin/sh <hrandoz:#kernelnewbies> kernel call I/O +stat fstat close install handle process process process <hrandoz:#kernelnewbies> 2.5.65 0.66 0.96298 3 +.60 1.48 5.31 1.92 3.89 1279 3233 13703 <hrandoz:#kernelnewbies> 2.5.65-mm1 0.63 1.04114 3 +.65 1.57 6.39 2.29 3.92 1370 3621 13985 <hrandoz:#kernelnewbies> 2.5.65-mm2 0.65 0.98654 3 +.64 1.46 6.88 1.91 3.94 1511 3676 13502 <hrandoz:#kernelnewbies> 2.5.65-mm2-anobjrmap 0.66 0.96061 3 +.82 1.45 5.38 1.90 4.68 1414 3497 13169 <hrandoz:#kernelnewbies> 2.2.23 0.42 0.80455 4 +.76 1.24 5.77 1.43 2.74 788 2303 30829 <hrandoz:#kernelnewbies> 2.4.21-pre4aa3 0.62 0.72201 3 +.44 1.02 5.32 1.41 3.43 848 2114 10117 <hrandoz:#kernelnewbies> 2.4.21-pre5 0.62 0.75284 3 +.18 1.02 5.35 1.41 3.25 927 2559 11884 <hrandoz:#kernelnewbies> 2.4.21-pre5-akpm 0.61 0.73119 3 +.32 1.02 5.28 1.41 3.16 865 2421 11636 <hrandoz:#kernelnewbies> 2.5.63-mjb1 0.66 1.12795 4 +.01 1.64 6.66 1.92 4.49 1125 2793 12475 <hrandoz:#kernelnewbies> 2.5.62-mjb2 0.64 1.09703 4 +.12 1.66 5.77 1.89 4.05 1128 2888 12669 <hrandoz:#kernelnewbies> 2.5.63-mjb2 0.67 1.03824 4 +.12 1.66 5.87 1.90 4.39 1144 2985 12650 <hrandoz:#kernelnewbies> 2.5.62-mm3 0.62 0.95155 4 +.72 1.42 7.55 1.90 3.92 1164 3073 13101
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