Messages in this thread | | | Date | Sun, 16 Dec 2012 02:15:08 +0000 | From | Eric Wong <> | Subject | Re: resend--[PATCH] improve read ahead in kernel |
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xtu4 <xiaobing.tu@intel.com> wrote: > resend it, due to format error > > Subject: [PATCH] when system in low memory scenario, imaging there is a mp3 > play, ora video play, we need to read mp3 or video file > from memory to page cache,but when system lack of memory, > page cache of mp3 or video file will be reclaimed.once read > in memory, then reclaimed, it will cause audio or video > glitch,and it will increase the io operation at the same > time.
To me, this basically describes how POSIX_FADV_NOREUSE should work. I would like to have this ability via fadvise (and not CONFIG_).
Also, I think your patch has too many #ifdefs to be accepted.
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