Messages in this thread | ![/](/images/icornerl.gif) | | Date | Wed, 16 Apr 2003 03:11:44 -0700 | From | Andrew Morton <> | Subject | Re: DMA transfers in 2.5.67 |
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Chuck Ebbert <76306.1226@compuserve.com> wrote: > > # mount /ext3_fs > # time dd if=/ext3_fs/100MiB_file of=/dev/null bs=32k > > 2.4.20aa1 : 3.3 sec (exactly what I expect to see) > 2.5.66 : 6.6 sec
With this test 2.4 will leave a lot more unwritten dirty data in memory.
You should include a `sync' in the timings. - 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/
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