Re: [PATCH] kvm tools: Use vring_need_event() to determine if interrupt is needed

2011-11-26 Thread Pekka Enberg
On Fri, Nov 25, 2011 at 5:47 PM, Asias He asias.he...@gmail.com wrote: This patch also fixes fio seq-read hang problem.   root@guest-kvm:~# cat seq-read.fio   [seq-read]   rw=read   bs=4096   size=512m   direct=1   filename=/dev/vdb   root@guest-kvm:~# fio seq-read.fio   random-read:

Re: [PATCH] kvm tools: Use vring_need_event() to determine if interrupt is needed

2011-11-26 Thread Sasha Levin
On Sat, 2011-11-26 at 14:40 +0200, Pekka Enberg wrote: On Fri, Nov 25, 2011 at 5:47 PM, Asias He asias.he...@gmail.com wrote: This patch also fixes fio seq-read hang problem. root@guest-kvm:~# cat seq-read.fio [seq-read] rw=read bs=4096 size=512m direct=1

Re: [PATCH] kvm tools: Use vring_need_event() to determine if interrupt is needed

2011-11-26 Thread Sasha Levin
On Sat, 2011-11-26 at 15:27 +0200, Sasha Levin wrote: On Sat, 2011-11-26 at 14:40 +0200, Pekka Enberg wrote: On Fri, Nov 25, 2011 at 5:47 PM, Asias He asias.he...@gmail.com wrote: This patch also fixes fio seq-read hang problem. root@guest-kvm:~# cat seq-read.fio [seq-read]

[PATCH] kvm tools: Use vring_need_event() to determine if interrupt is needed

2011-11-25 Thread Asias He
This patch also fixes fio seq-read hang problem. root@guest-kvm:~# cat seq-read.fio [seq-read] rw=read bs=4096 size=512m direct=1 filename=/dev/vdb root@guest-kvm:~# fio seq-read.fio random-read: (g=0): rw=read, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1 Starting 1