Hi Lipeng! On 2023-12-14T02:28:22+0000, "Zhu, Lipeng" <lipeng....@intel.com> wrote: > On 2023/12/14 4:52, Thomas Schwinge wrote: >> On 2023-12-12T02:05:26+0000, "Zhu, Lipeng" <lipeng....@intel.com> wrote: >> > On 2023/12/12 1:45, H.J. Lu wrote: >> >> On Sat, Dec 9, 2023 at 7:25 PM Zhu, Lipeng <lipeng....@intel.com> >> wrote: >> >> > On 2023/12/9 23:23, Jakub Jelinek wrote: >> >> > > On Sat, Dec 09, 2023 at 10:39:45AM -0500, Lipeng Zhu wrote: >> >> > > > This patch try to introduce the rwlock and split the read/write >> >> > > > to unit_root tree and unit_cache with rwlock instead of the >> >> > > > mutex to increase CPU efficiency. In the get_gfc_unit function, >> >> > > > the percentage to step into the insert_unit function is around >> >> > > > 30%, in most instances, we can get the unit in the phase of >> >> > > > reading the unit_cache or unit_root tree. So split the >> >> > > > read/write phase by rwlock would be an approach to make it more >> parallel. >> >> > > > >> >> > > > BTW, the IPC metrics can gain around 9x in our test server with >> >> > > > 220 cores. The benchmark we used is >> >> > > > https://github.com/rwesson/NEAT
>> I've just filed <https://gcc.gnu.org/PR113005> >> "'libgomp.fortran/rwlock_1.f90', 'libgomp.fortran/rwlock_3.f90' execution >> test timeouts". >> Would you be able to look into that? > Sure, I will look into that. > > BTW, I didn’t have the PowerPC in hands, do you mind granting the access of > your > test environment to me to help reproduce the issue? That's unfortunately not possible: it's behind company VPN, restricted access. :-/ I'll later try to have at least a quick look where it's hanging, or what it's doing. Grüße Thomas ----------------- Siemens Electronic Design Automation GmbH; Anschrift: Arnulfstraße 201, 80634 München; Gesellschaft mit beschränkter Haftung; Geschäftsführer: Thomas Heurung, Frank Thürauf; Sitz der Gesellschaft: München; Registergericht München, HRB 106955
