Bump minimum MACOSX_DEPLOYMENT_TARGET to 10.6
The macOS SDK for 10.4 has been deprecated as of 10.14, bump to 10.6 so that LuaJIT continues to build out of the box.
Fixes LuaJIT#484.
In drv_mysql.c do not assume MYSQL_OPT_SSL_MODE to be a preprocessor
define. It is an mysql_option enum value with all MySQL
versions. Instead, do a configure-time check if that value is defined in
mysql.h.
When the --rate option was used together with the --time option, a bogus
"Terminating the event generator thread failed" error was thrown at the
end of the test.
Worker threads used sleep() in the bounded rate mode to avoid CPU
hogging when polling on the event queue. The problem was that sleep()
calls increased time spent by events in the queue, which is counted
towards event latency to avoid the coordinated omission problem. The
lower the rate, the bigger impact on latency was observed.
The fix is replacing sleep()s with a condition variable which is now
used to put worker into an idle wait when the queue is empty. The event
generation thread now uses pthread_cond_signal() after each generated
event to wake up an idle worker thread. Which somewhat increases
sysbench CPU consumption, especially for high rates.
Get rid of TLS variables in sb_memory.c, because their implementation
varies across platforms and their usage is an overkill for this
benchmark. Instead just use preallocated arrays with per-thread buffers/counters.
The --rand-type described in man pages don't really work for
sysbench memory tests. So enable this powerful feature.
Tested with
sysbench memory --memory-access-mode=rnd --rand-type=pareto run
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
