Hi Marcelo,
hi Sebastian,
Am 25.05.22 um 15:56 schrieb Marcelo Tosatti:
On Mon, May 23, 2022 at 09:09:07AM +0200, Sebastian Andrzej Siewior wrote:
On 2022-05-22 01:22:00 [+0200], Stefan Wahren wrote:
Hi,
Hi,
while testing the staging/vc04_services/interface/vchiq_arm driver with my
Raspberry Pi 3 B+ (multi_v7_defconfig) i noticed a huge performance
regression since [ff042f4a9b050895a42cae893cc01fa2ca81b95c] mm:
lru_cache_disable: replace work queue synchronization with synchronize_rcu
Usually i run "vchiq_test -f 1" to see the driver is still working [1].
What about
https://lore.kernel.org/all/YmrWK%2FKoU1zrAxPI@xxxxxxxxxxx/
Sebastian
Stefan,
Can you please try the patch above ?
this patch fixes the regression. Great
Best regards
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