Re: Testing the performance impact of kernel modifications

2018-10-23 Thread SeyedAlireza Sanaee
I believe there is no definite methodology, it is all experimental and dependent on the applications you are running and as Valdis told on the changes you would like to make. Basically, when a paper offers a new algorithm or design then they should have tested it on their own testbed. They may repo

Re: Testing the performance impact of kernel modifications

2018-10-15 Thread Carter Cheng
Basically I am looking for methodology guidelines for doing my own testing on a bunch of techniques in different papers and seeing what the performance impact is overall. Are there guidelines for doing such things? On Tue, Oct 16, 2018 at 3:19 AM wrote: > On Tue, 16 Oct 2018 01:23:45 +0800, Cart

Re: Testing the performance impact of kernel modifications

2018-10-15 Thread valdis . kletnieks
On Tue, 16 Oct 2018 01:23:45 +0800, Carter Cheng said: > I am actually looking at some changes that litter the kernel with short > code snippets and thus according to papers i have read can result in CPU > hits of around 48% when applied is userspace. You're going to need to be more specific. Not

Re: Testing the performance impact of kernel modifications

2018-10-15 Thread Carter Cheng
I am actually looking at some changes that litter the kernel with short code snippets and thus according to papers i have read can result in CPU hits of around 48% when applied is userspace. I am curious how you would best measure the impact of similar modifications (since obviously one isn't alway

Re: Testing the performance impact of kernel modifications

2018-10-15 Thread valdis . kletnieks
On Mon, 15 Oct 2018 23:42:03 +0800, Carter Cheng said: > I was wondering what are some good ways to assess the performance impact of > kernel modifications. Are there some papers in the literature where this is > done? Does one need to differentiate between CPU bound and different types > of I/O b

Testing the performance impact of kernel modifications

2018-10-15 Thread Carter Cheng
Hi, I was wondering what are some good ways to assess the performance impact of kernel modifications. Are there some papers in the literature where this is done? Does one need to differentiate between CPU bound and different types of I/O bound processes etc? Regards, Carter.