d15d273226
Fix --mutex-loops description to say it's the number of empty loops outside the lock. Also, make the loops really empty by using a compiler barrier instead of incrementing a local variable.
51 lines
1.4 KiB
Perl
51 lines
1.4 KiB
Perl
########################################################################
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mutex benchmark tests
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########################################################################
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$ args="mutex --events=10 --threads=2"
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$ sysbench $args help
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sysbench *.* * (glob)
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mutex options:
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--mutex-num=N total size of mutex array [4096]
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--mutex-locks=N number of mutex locks to do per thread [50000]
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--mutex-loops=N number of empty loops to do outside mutex lock [10000]
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$ sysbench $args prepare
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sysbench *.* * (glob)
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'mutex' test does not implement the 'prepare' command.
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[1]
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$ sysbench $args run
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sysbench *.* * (glob)
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Running the test with following options:
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Number of threads: 2
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Initializing random number generator from current time
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Initializing worker threads...
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Threads started!
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General statistics:
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total time: *s (glob)
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total number of events: 2
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Latency (ms):
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min: *.* (glob)
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avg: *.* (glob)
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max: *.* (glob)
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95th percentile: *.* (glob)
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sum: *.* (glob)
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Threads fairness:
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events (avg/stddev): */* (glob)
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execution time (avg/stddev): */* (glob)
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$ sysbench $args cleanup
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sysbench *.* * (glob)
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'mutex' test does not implement the 'cleanup' command.
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[1]
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