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Re: [linux-lvm] mirror_region_size default: 4096 six times faster than 512?

512 byte sector consumer SATA drives from Seagate and Hitachi. Drives attached to a 9560 RAID card exhibited more difference than drives in a different system attached to the motherboard directly. As I mentioned, I haven't done extensive or highly scientific testing, but in general, across various hardware using various software, copying chinks of a few MBs seems to always beat copying bytes or KB per chunk.

Sent from my Android phone with K-9 Mail. Please excuse my brevity.

Les Mikesell <lesmikesell gmail com> wrote:
On Tue, Feb 21, 2012 at 10:29 AM, Ray Morris <support bettercgi com> wrote:

If 4096 is OFTEN several times faster than 512, would it make sense
to consider canging the default?

What disks are underneath this?  One of the new 4k sector types?

   Les Mikesell
    lesmikesell gmail com

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