igt/gem_ctx_switch: Measure qlen for timing loops

Some platforms may execute the heavy workload very slowly, such that
using a batch of 1024 takes tens of seconds and immediately overrunning
the 5s timeout on a pass. Added up over a few dozen passes, this turns a
120 second test into 10 minutes. Counter this by doing a warmup loop to
estimate the appropriate queue len for timing.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

0 files changed, 0 insertions, 0 deletions