Split stats from debug, to make mempool statistics available without the
performance cost of continuously validating the debug cookies in the
mempool elements.
mempool_perf_autotest shows the following improvements in rate_persec.
The cost of enabling mempool debug without this patch:
-28.1 % and -74.0 %, respectively without and with cache.
The cost of enabling mempool stats (without debug) after this patch:
-5.8 % and -21.2 %, respectively without and with cache.
Signed-off-by: Morten Brørup <mb@smartsharesystems.com>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Mattias Rönnblom <mattias.ronnblom@ericsson.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@huawei.com>
9d87e05d08