Messages in this thread | | | Date | Wed, 25 Feb 2004 20:45:29 +0200 (IST) | From | Hayim Shaul <> | Subject | Re: Latest AIO patchset |
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> > Some basic results are up comparing streaming non-cached random > AIO read/write throughputs for a single ext3 file using aio-stress > for various io sizes with and without these patches, and also > comparsions with O_DIRECT AIO throughputs. The short summary has > been a doubling of throughput using the fsaio patches, which is > also close to the results seen with O_DIRECT AIO. > > As usual feedback, bug fixes, test results etc are welcome. >
What exactly is the O_DIRECT flag? When I add this flag to the open func it fails.
More specificaly, this function fails open("filename", O_RDWR | O_DIRECT | O_LARGEFILE | O_CREAT, S_IRWXU);
but this one succeeds open("filename", O_RDWR | O_LARGEFILE | O_CREAT, S_IRWXU);
I'm running linux 2.6.0 with libaio 0.3.92.
Hayim.
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