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29 lines
873 B
Bash
29 lines
873 B
Bash
#!/bin/sh
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# Runs MeasureDiskOrderedScan -- see its source code for details.
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#
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# Meant to be run from the JEHOME directory. Creates a JEHOME/tmp directory
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# to contain the data. Must be run as root in order to execute the command to
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# clear the file system cache.
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#
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# This script populates the data and runs a single performance comparison. It
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# is meant to be modified as needed.
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JEHOME="."
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CP="${JEHOME}/build/lib/je.jar:${JEHOME}/build/test/standalone/classes"
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ARGS="MeasureDiskOrderedScan -nRecords 5000000 -jeCacheSize 500000000"
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CMD="java -cp $CP -Xms1g -Xmx1g $ARGS"
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# Clear directory and Populate
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#rm -rf tmp && mkdir tmp
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#sync; echo 3 > /proc/sys/vm/drop_caches
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#$CMD -action Populate
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# DirtyReadScan
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#sync; echo 3 > /proc/sys/vm/drop_caches
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#$CMD -action DirtyReadScan
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# DiskOrderedScan
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sync; echo 3 > /proc/sys/vm/drop_caches
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$CMD -action DiskOrderedScan
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