Messages in this thread | | | From | Joel Fernandes <> | Date | Tue, 15 Nov 2016 11:55:48 -0800 | Subject | Re: [PATCH v3 0/8] pstore: Improve performance of ftrace backend with ramoops |
| |
Hi Kees,
On Fri, Nov 11, 2016 at 2:21 PM, Kees Cook <keescook@chromium.org> wrote: > Hi Joel, > > I've reorganized a bunch of the logic here. Since pstore is going to need > the init_przs() logic for multiple pmsg przs, I wanted to get this in and > make sure I was happy with how it looks. I figured this would reduce our > round-trip time on reviews. :) > > Can you test this series and verify that it works as you're expecting? I've > validated some basic behavior already, but don't have a good test-case for > ftrace. What commands do you actually use for testing ftrace? I'd like to > add something to my local tests.
I normally do the following:
dd if=/dev/urandom | pv | dd of=/dev/null
and in parallel, I do a: echo 1 > /sys/kernel/debug/pstore/record_ftrace
and then check the throughput; and then reboot the system and do a read out of /sys/fs/pstore/ ftrace file.
I will try these patches out today and thanks for refactoring the init prz stuff.
Regards, Joel
| |