Chih-Yang Hsia b0423fd529 Revert "virtqueue: Try to further reduce unnecessary interrupts" ... This reverts commit c6554e9c7e. Reason for revert: `time tast run mycros arc.Boot.vm` will always halt at ``` Waiting for Android boot Waiting for initial ARC process ``` till timeout. Original change's description: > virtqueue: Try to further reduce unnecessary interrupts > > Try to reduce unnecessary interrupts by updating `signalled_used` every > time we check `used_event` rather than only when we actually write to > the eventfd. > > This technique is lifted out of the vhost_add_used_n and vhost_notify > methods in drivers/vhost/vhost.c in the kernel and the variable names > are changed to more easily compare the two implmentations. > > This combined with the other notification suppression changes give a > performance improvement of ~10% across all storage devices in the > blogbench benchmark. > > BUG=none > TEST=vm.Blogbench.{p9,block,virtiofs} > > Change-Id: I618767e4c36ecae607b7641e54a029c25583844d > Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3026691 > Tested-by: kokoro <noreply+kokoro@google.com> > Commit-Queue: Chirantan Ekbote <chirantan@chromium.org> > Reviewed-by: Daniel Verkamp <dverkamp@chromium.org> BUG=b:194452080 TEST=time tast run mycros arc.Boot.vm Change-Id: Ib7511dec3e0df26be54616f20226ded598fc8a37 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3051292 Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Auto-Submit: Chih-Yang Hsia <paulhsia@chromium.org> Tested-by: kokoro <noreply+kokoro@google.com> Commit-Queue: Chirantan Ekbote <chirantan@chromium.org> Reviewed-by: Chirantan Ekbote <chirantan@chromium.org>		2021-07-26 07:00:57 +00:00
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src	Revert "virtqueue: Try to further reduce unnecessary interrupts"	2021-07-26 07:00:57 +00:00
.build_test_serial	devices: Add simple test for proxy device	2020-11-17 21:05:51 +00:00
Cargo.toml	rand_ish: remove unused crate	2021-07-21 23:28:28 +00:00