Mesa (main): Revert "venus: Increase the base sleep of vn_relax"

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Module: Mesa
Branch: main
Commit: 5ec49953052ae29a16c89d0ffc3272b6088e6df4
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=5ec49953052ae29a16c89d0ffc3272b6088e6df4

Author: Renato Pereyra <renatopereyra at google.com>
Date:   Tue Apr  5 18:02:46 2022 -0700

Revert "venus: Increase the base sleep of vn_relax"

This reverts commit 737937f45e4231dd596780a856270693566de658.

Testing has revealed sizable performance drops arising out of this change.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15760>

---

 src/virtio/vulkan/vn_common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/virtio/vulkan/vn_common.c b/src/virtio/vulkan/vn_common.c
index f9d639ba1f7..b74b2384dd5 100644
--- a/src/virtio/vulkan/vn_common.c
+++ b/src/virtio/vulkan/vn_common.c
@@ -86,7 +86,7 @@ vn_relax(uint32_t *iter, const char *reason)
     * keep doubling both sleep length and count.
     */
    const uint32_t busy_wait_order = 4;
-   const uint32_t base_sleep_us = 120;
+   const uint32_t base_sleep_us = 10;
    const uint32_t warn_order = 12;
    const uint32_t abort_order = 14;