On Mon, 11 Sep 2000, Chris Mason wrote:
>reiserfs-3.5.25, this patch. I tested against pre3-aa2.
BTW, pre3-aa2 means 2.2.18pre2aa2.bz2 applyed on top of 2.2.18pre3.
>Note, you might see debugging messages about items moving during
>copy_from_user. These are safe, but I'm leaving them in for now as I'd
>like to find out why copy_from_user is suddenly scheduling much more than
>it used to.
In 2.2.18pre2aa2.bz2 there's a latency bugfix, now a:
read(fd, &buf, 0x7fffffff)
write(fd, &buf, 0x7fffffff)
sendfile(src, dst, NULL, 0x7fffffff)
doesn't hang the machine anymore for several seconds. (well, really they
are all three still a bit buggy because they don't interrupt themself when
a signal arrives so we can't use senfile for `cp` of files smaller than 2g
yet... but at least now you can do something in parallel even if you are
so lucky to have some giga of fs cache)
Andrea
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