[$] Improving fget() performance
lundi 6 mai 2019, 22:24 , par LWN.net
The performance of the fget() function in the kernel was the topic
of a discussion led by Dave Watson at the 2019 Linux Storage, Filesystem,
and Memory-Management Summit (LSFMM).
is used to take a reference to a
file (i.e. bump a reference count), based on its file descriptor, and to
return the struct file pointer for it; references are dropped with
Some recent profiling at Watson's
employer, Facebook, found the function to be taking a sizable portion of
the CPU time for some applications, so he wanted to talk about some of the
things he has tried to make that situation better.
56 sources (32 en français)
mer. 2 déc. - 19:38 CET