Re: [PATCH RFC] virtio_blk: Use blk-iopoll for host-guest notify

2010-05-18 Thread Stefan Hajnoczi
On Fri, May 14, 2010 at 05:30:56PM -0500, Brian Jackson wrote: Any preliminary numbers? latency, throughput, cpu use? What about comparing different weights? I am running benchmarks and will report results when they are in. Stefan -- To unsubscribe from this list: send the line unsubscribe

Re: [PATCH RFC] virtio_blk: Use blk-iopoll for host-guest notify

2010-05-18 Thread Jens Axboe
On Tue, May 18 2010, Stefan Hajnoczi wrote: On Fri, May 14, 2010 at 05:30:56PM -0500, Brian Jackson wrote: Any preliminary numbers? latency, throughput, cpu use? What about comparing different weights? I am running benchmarks and will report results when they are in. I'm very interested

[PATCH RFC] virtio_blk: Use blk-iopoll for host-guest notify

2010-05-14 Thread Stefan Hajnoczi
This patch adds blk-iopoll interrupt mitigation to virtio-blk. Instead of processing completed requests inside the virtqueue interrupt handler, a softirq is scheduled to process up to a maximum number of completed requests in one go. If the number of complete requests exceeds the maximum number,

Re: [PATCH RFC] virtio_blk: Use blk-iopoll for host-guest notify

2010-05-14 Thread Brian Jackson
On Friday, May 14, 2010 03:47:37 pm Stefan Hajnoczi wrote: This patch adds blk-iopoll interrupt mitigation to virtio-blk. Instead of processing completed requests inside the virtqueue interrupt handler, a softirq is scheduled to process up to a maximum number of completed requests in one go.