glbench: Reduce max iteration duration to 0.4s

On trogdor, the longer duration is bumping into the kernel's hangcheck
timer, which means the higher iteration counts are not necessarily
measuring anything useful.

(glbench is already not really measuring anything useful on trogdor, due
to minigbm disabling UBWC bandwidth compression for anything that uses
waffle, to work around waffle limitations.. but lets make glbench
measure something that is at least a bit less useless.)

BUG=b:179122157
TEST=Run on trogdor

Change-Id: I29dbf9726f633599297ff789fb95a0b0bf25d6fc
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/glbench/+/2737682
Tested-by: Rob Clark <robdclark@chromium.org>
Auto-Submit: Rob Clark <robdclark@chromium.org>
Reviewed-by: Ilja H. Friedel <ihf@chromium.org>
Commit-Queue: Rob Clark <robdclark@chromium.org>
1 file changed