Re: [PATCH 0/2] x86/idle: add halt poll support

2017-06-23 14:49+0800, Yang Zhang: > On 2017/6/23 12:35, Wanpeng Li wrote: > > 2017-06-23 12:08 GMT+08:00 Yang Zhang : > > > On 2017/6/22 19:50, Wanpeng Li wrote: > > > > > > > > 2017-06-22 19:22 GMT+08:00 root : > > > > > > > > > > From: Yang

Re: [PATCH 0/2] x86/idle: add halt poll support

2017-06-23 14:49+0800, Yang Zhang: > On 2017/6/23 12:35, Wanpeng Li wrote: > > 2017-06-23 12:08 GMT+08:00 Yang Zhang : > > > On 2017/6/22 19:50, Wanpeng Li wrote: > > > > > > > > 2017-06-22 19:22 GMT+08:00 root : > > > > > > > > > > From: Yang Zhang > > > > > > > > > > Some latency-intensive

Re: [PATCH 0/2] x86/idle: add halt poll support

On 2017/6/23 12:35, Wanpeng Li wrote: 2017-06-23 12:08 GMT+08:00 Yang Zhang : On 2017/6/22 19:50, Wanpeng Li wrote: 2017-06-22 19:22 GMT+08:00 root : From: Yang Zhang Some latency-intensive workload will see

Re: [PATCH 0/2] x86/idle: add halt poll support

On 2017/6/23 12:35, Wanpeng Li wrote: 2017-06-23 12:08 GMT+08:00 Yang Zhang : On 2017/6/22 19:50, Wanpeng Li wrote: 2017-06-22 19:22 GMT+08:00 root : From: Yang Zhang Some latency-intensive workload will see obviously performance drop when running inside VM. The main reason is that the

Re: [PATCH 0/2] x86/idle: add halt poll support

2017-06-23 12:08 GMT+08:00 Yang Zhang : > On 2017/6/22 19:50, Wanpeng Li wrote: >> >> 2017-06-22 19:22 GMT+08:00 root : >>> >>> From: Yang Zhang >>> >>> Some latency-intensive workload will see obviously performance >>>

Re: [PATCH 0/2] x86/idle: add halt poll support

2017-06-23 12:08 GMT+08:00 Yang Zhang : > On 2017/6/22 19:50, Wanpeng Li wrote: >> >> 2017-06-22 19:22 GMT+08:00 root : >>> >>> From: Yang Zhang >>> >>> Some latency-intensive workload will see obviously performance >>> drop when running inside VM. The main reason is that the overhead >>> is

Re: [PATCH 0/2] x86/idle: add halt poll support

On 2017/6/22 19:50, Wanpeng Li wrote: 2017-06-22 19:22 GMT+08:00 root : From: Yang Zhang Some latency-intensive workload will see obviously performance drop when running inside VM. The main reason is that the overhead is amplified when running

Re: [PATCH 0/2] x86/idle: add halt poll support

On 2017/6/22 19:50, Wanpeng Li wrote: 2017-06-22 19:22 GMT+08:00 root : From: Yang Zhang Some latency-intensive workload will see obviously performance drop when running inside VM. The main reason is that the overhead is amplified when running inside VM. The most cost i have seen is inside

Re: [PATCH 0/2] x86/idle: add halt poll support

2017-06-22 19:22 GMT+08:00 root : > From: Yang Zhang > > Some latency-intensive workload will see obviously performance > drop when running inside VM. The main reason is that the overhead > is amplified when running inside VM. The most cost i have

Re: [PATCH 0/2] x86/idle: add halt poll support

2017-06-22 19:22 GMT+08:00 root : > From: Yang Zhang > > Some latency-intensive workload will see obviously performance > drop when running inside VM. The main reason is that the overhead > is amplified when running inside VM. The most cost i have seen is > inside idle path. > This patch

Re: [PATCH 0/2] x86/idle: add halt poll support

On 2017/6/22 19:22, root wrote: From: Yang Zhang Sorry to use wrong username to send patch because i am using a new machine which don't setup the git config well. Some latency-intensive workload will see obviously performance drop when running inside VM. The main

Re: [PATCH 0/2] x86/idle: add halt poll support

On 2017/6/22 19:22, root wrote: From: Yang Zhang Sorry to use wrong username to send patch because i am using a new machine which don't setup the git config well. Some latency-intensive workload will see obviously performance drop when running inside VM. The main reason is that the

[PATCH 0/2] x86/idle: add halt poll support

From: Yang Zhang Some latency-intensive workload will see obviously performance drop when running inside VM. The main reason is that the overhead is amplified when running inside VM. The most cost i have seen is inside idle path. This patch introduces a new mechanism to

[PATCH 0/2] x86/idle: add halt poll support

From: Yang Zhang Some latency-intensive workload will see obviously performance drop when running inside VM. The main reason is that the overhead is amplified when running inside VM. The most cost i have seen is inside idle path. This patch introduces a new mechanism to poll for a while before