perf tests: Fixes hang in zstd compression test by changing the source of random...
authorJames Clark <James.Clark@arm.com>
Thu, 22 Aug 2019 13:55:15 +0000 (13:55 +0000)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Mon, 26 Aug 2019 14:58:29 +0000 (11:58 -0300)
commitd93fc7ac88c7347d1c31ca158d1466d1ce2097e1
tree959f342e236c88773d382e56411d665c7e9b7078
parent185bcb92c80eae2d85ec834ea76a144fd163e2af
perf tests: Fixes hang in zstd compression test by changing the source of random data

Running 'perf test' with zstd compression linked will hang at the test
'Zstd perf.data compression/decompression' because /dev/random blocks
reads until there is enough entropy. This means that the test will
appear to never complete unless the mouse is continually moved while
running it.

Signed-off-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Jeremy Linton <jeremy.linton@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/3d8cc701-df4e-f949-1715-5118b530e990@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/tests/shell/record+zstd_comp_decomp.sh