On Thu, Feb 11, 2016 at 11:35 AM, Robert O'Callahan <rob...@ocallahan.org> wrote:
> On Thu, Feb 11, 2016 at 11:55 PM, Nicolas B. Pierron < > nicolas.b.pier...@mozilla.com> wrote: > > > On 02/10/2016 08:04 PM, Robert O'Callahan wrote: > > > >> Background: > >> http://robert.ocallahan.org/2016/02/introducing-rr-chaos-mode.html > >> > >> I just landed on rr master support for a "-h" option which enables a > chaos > >> mode for rr recording. This is designed to help reproduce intermittent > >> test > >> failures under rr. […] > >> > > > > Thanks Roc, I will give it a try. > > > > On the other hand, I used to rely more on the "-c" option to achieve a > > similar thing in the past, instead of the "-e" option. > > > > The reason I did so being that the thread I am interested in does a few > > syscalls compared to the rest of the program. Thus I felt that using > "-e" > > option would give it an unfair large time slices compared to what is > > supposed to happen if the threads are running concurrently. > > > The -e option is gone now because the new scheduler (with or without chaos > mode) does not take system calls into account when calculating the length > of a timeslice. We only count conditional branches. > So we context switch at a syscall now only when the current thread happens to become unschedulable? - Kyle _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
