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| author | Bob Liu <bob.liu@oracle.com> | 2015-11-16 21:51:39 (GMT) |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2016-01-04 17:21:03 (GMT) |
| commit | 73716df7da4f60dd2d59a9302227d0394f1b8fcc (patch) | |
| tree | a85262e604642221d09a365984f744c283325209 /drivers/hid/hid-belkin.c | |
| parent | 75f070b3967b0c3bf0e1bc43411b06bab6c2c2cd (diff) | |
| download | linux-73716df7da4f60dd2d59a9302227d0394f1b8fcc.tar.xz | |
xen/blkfront: make persistent grants pool per-queue
Make persistent grants per-queue/ring instead of per-device, so that we can
drop the 'dev_lock' and get better scalability.
Test was done based on null_blk driver:
dom0: v4.2-rc8 16vcpus 10GB "modprobe null_blk"
domu: v4.2-rc8 16vcpus 10GB
[test]
rw=read
direct=1
ioengine=libaio
bs=4k
time_based
runtime=30
filename=/dev/xvdb
numjobs=16
iodepth=64
iodepth_batch=64
iodepth_batch_complete=64
group_reporting
Queues: 1 4 8 16
Iops orig(k): 810 1064 780 700
Iops patched(k): 810 1230(~20%) 1024(~20%) 850(~20%)
Signed-off-by: Bob Liu <bob.liu@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers/hid/hid-belkin.c')
0 files changed, 0 insertions, 0 deletions