Re: [PATCH] md:Add blk_plug in sync_thread.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

On 06/11/2012 11:16 AM, majianpeng wrote:
> Add blk_plug in sync_thread will increase the performance of sync.
> Because sync_thread did not blk_plug,so when raid sync, the bio merge
> not well.
> Testing environment:
> SATA controller: Intel Corporation 82801JI (ICH10 Family) SATA AHCI
> Controller.
> OS:Linux xxx 3.5.0-rc2+ #340 SMP Tue Jun 12 09:00:25 CST 2012
> x86_64 x86_64 x86_64 GNU/Linux.
> RAID5: four ST31000524NS disk.
> Without blk_plug:recovery speed about 63M/Sec;
> Add blk_plug:recovery speed about 120M/Sec.
Whahoo!! :)

To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at

[ATA RAID]     [Linux SCSI Target Infrastructure]     [Managing RAID on Linux]     [Linux IDE]     [Linux SCSI]     [Linux Hams]     [Device-Mapper]     [Kernel]     [Linux Books]     [Linux Admin]     [Linux Net]     [GFS]     [RPM]     [git]     [Photos]     [Yosemite Photos]     [Yosemite News]     [AMD 64]     [Linux Networking]

Add to Google Powered by Linux