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I/O Scheduler Test Results
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Test Partition is /data formatted as ext4 and mounted with the following options: nosuid, nodev, noatime, commit=30, barrier=1, data=ordered, noauto_da_alloc, discard
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Test Data for AndroBench is 16MB Read, 1MB Write Buffer Size for Sequential and Random Access is SEQ=256kb RND=4kb SQLite Transactions=100
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Testing is done simply by changing I/O scheduler using Voltage Control to ensure no init.d scripts overwrite default settings in kernel then AndroBench is run once per I/O scheduler Change. Only 1st run is recorded for now. Testing was done while no other heavy I/O Operations were being run (i.e. listening to music or watching a 1080p MKV. These results WILL vary if those are taken into account. (which will be another Spreadsheet when I have the time)
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I/O Schedulers (RedPill defaults)Hit the source to see which defaults are used
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AndroBench Storage Benchmarking Tool I/O VariablesdeadlineSIO (2012)noopV(R)bfq (v3r1)
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Sequential Read (MB/s)49.1449.3747.6348.7547.74
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Random Read (IOPS)2616.52546.032429.112558.532282.68
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Sequential Write (MB/s)2.526.062.473.830.88
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Random Write (IOPS)60.7166.4162.3660.1434.28
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SQLite Insert (TPS)23.9917.7522.7321.2821.34
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SQLite Update (TPS)26.5225.120.8619.2321.33
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SQLite Delete (TPS)24.2823.426.822.121.41
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Browser (msec)402.75383507.5228.75330.5
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Market (msec)799.5463725.5725516
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Camera (msec)566.75355.75372.25395.75803.75
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Camcorder (msec)2156.52052.751695.751899.751856
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While Running a 320kbps mp3 file (low I/O load)
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AndroBench Storage Benchmarking Tool I/O VariablesdeadlineSIO (2012)noopV(R)bfq (v3r1)
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Sequential Read (MB/s)46.1445.4245.6248.1246.19
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Random Read (IOPS)2403.712393.652390.162472.082335.69
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Sequential Write (MB/s)3.273.262.52.370.51
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Random Write (IOPS)58.8556.2769.7463.4334.81
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SQLite Insert (TPS)30.728.9730.4724.8318.78
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SQLite Update (TPS)25.6419.7433.5420.2120.87
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SQLite Delete (TPS)26.2225.9429.8522.2916.5
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Browser (msec)444.5309.75281.5283.75322.25
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Market (msec)776.751038661.5951.5899.75
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Camera (msec)557.75444474.5535.5410.5
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Camcorder (msec)1705.252048.751751.52166.751765
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