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Bruce Momjian
21 lines
781 B
Plaintext
21 lines
781 B
Plaintext
test_fsync
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==========
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This program tests fsync. The tests are described as part of the program output.
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Usage: test_fsync [-f filename] [loops]
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test_fsync is intended to give you a reasonable idea of what the fastest
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fsync_method is on your specific system, as well as supplying diagnostic
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information in the event of an identified I/O problem. However,
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differences shown by test_fsync might not make any difference in real
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database throughput, especially since many database servers are not
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speed-limited by their transaction logs.
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The output filename defaults to test_fsync.out in the current directory.
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test_fsync should be run in the same filesystem as your transaction log
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directory (pg_xlog).
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Loops default to 2000. Increase this to get more accurate measurements.
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