Thomas L Marshall wrote: >[snip] > >Thanks again Jeff. The links you provided were just what I needed to >compile the missing raid10 and dm- modules that I needed. After I was >able to simply copy them to the existing modules directory and depmod >did the rest. > >Any chance these modules could be enabled in the distro? > >CONFIG_MD_RAID10=m >... >CONFIG_DM_CRYPT=m >CONFIG_DM_SNAPSHOT=m >CONFIG_DM_MIRROR=m >CONFIG_DM_ZERO=m > > Can you do some comparisons of latency tests with these modules in use vs. without? I have identified kjournald (the journalling daemon for ext3) as a source of high latencies on some machines, so I'm nervous about changing block device related drivers. I'm curious about three cases: Non-crypt/non-RAID filesystems, relevant modules not loaded Non-crypt/non-RAID filesystems in use, but the relevaln modules loaded (maybe on a different filesystem or two, which aren't being exercised) Exercising crypt/RAID filesystems during the test.
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