Ingo Molnar a écrit :
* Eric Dumazet <dada1@xxxxxxxxxxxxx> wrote:
Before patch, time to run 8 millions of close(socket()) calls on 8
CPUS was :
real 0m27.496s
user 0m0.657s
sys 3m39.092s
After patch :
real 0m23.997s
user 0m0.682s
sys 3m11.193s
cool :-)
What would it take to get it down to:
Cost if run one one cpu :
real 0m1.561s
user 0m0.092s
sys 0m1.469s
i guess asking for a wall-clock cost of 1.561/8 would be too much? :)
It might be possible, depending on the level of hackery I am allowed to inject
in fs/dcache.c and fs/inode.c :)
wall cost of 1.56 (each cpu runs one loop of one million iterations)
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