On Sun, Feb 22, 2015 at 6:30 AM, Roman Mamedov <rm@xxxxxxxxxxx> wrote: > On Sun, 22 Feb 2015 12:31:23 +0100 > Christer Solskogen <christer.solskogen@xxxxxxxxx> wrote: > >> There are so many different views on the internet > > ...and yet you're asking for some more? :) > >> Is there even such a thing as optimal chunk size? > > 64K should be fine: > http://louwrentius.com/linux-raid-level-and-chunk-size-the-benchmarks.html > I have seen that people report 64K chunk size results better performance. However, I was not able to find why mdadm maintainers decided to switch into 512K default chunk size a few years ago ? Was that decision related to the write-intent bitmap overhead ? -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
