Messages in this thread | | | Date | Mon, 10 Feb 2003 12:59:30 +0300 | From | Hans Reiser <> | Subject | Re: stochastic fair queueing in the elevator [Re: [BENCHMARK] 2.4.20-ck3 / aa / rmap with contest] |
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Andrew Morton wrote:
>Andrea Arcangeli <andrea@suse.de> wrote: > > >>BTW, one thing that should definitely do readhaead and it's >>not doing that (at least in 2.4) is the readdir path, again to generate >>big commands, no matter the seeks. It was lost with the directory in >>pagecache. >> >> > >Yes. But ext3 is still doing directory readahead, and I have never >noticed it gaining any particular benefit over ext2 from it. > >And neither fs performs inode table readahead. >- >To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >the body of a message to majordomo@vger.kernel.org >More majordomo info at http://vger.kernel.org/majordomo-info.html >Please read the FAQ at http://www.tux.org/lkml/ > > > > reiser4 does directory readahead. It gets a lot of gain from it.
-- Hans
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