| ecb600d0d9de4eacfd619dfe380a94af1abee0dd |
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23-Aug-2012 |
Ken Sumrall <ksumrall@android.com> |
Update emmc perf test tool
Drop caches before read tests.
Fix random read tests to read area big enough to prevent
the block cache from filling with the data being read.
Test with the read-ahead set to 4K, and at the default value.
Change-Id: Ifffa07fe4c89b6e103ce4fd71d0fa9881fed0dc7
/system/extras/tests/ext4/rand_emmc_perf.c
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| 32243fadeab8cf244861e3df89744b78ba3eff92 |
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28-Jun-2012 |
Ken Sumrall <ksumrall@android.com> |
Fix a few bugs in rand_emmc_perf
Fix the code to properly read urandom to init the random number generator.
Fix to properly read the arguments if any options are given.
Fix to enable it to be built against glibc.
Change-Id: I9127a71232e39afa3054fe9f1612def9ae13d9d3
/system/extras/tests/ext4/rand_emmc_perf.c
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| 2633ce5ca5024d5565c9068c29ec39a8c3ed10e9 |
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31-May-2012 |
Ken Sumrall <ksumrall@android.com> |
Add some tools for testing ext4 performance and resiliency.
rand_emmc_perf is a simple test to test random read/write performance
of emmc chips. android_emmc_perf_tests is a script that runs on
the host that uses rand_emmc_perf to test the emmc performance on
a device.
corrupt_gdt_free_blocks is used to corrupt a filesystem so the kernel
trips over it at runtime and panics, thus testing kernel's ability to
mark the filesystem as needing to be fixed.
set_ext4_err_bit sets the error bit in the superblock so e2fsck will
trigger a full check next boot.
corrupt_gdt_free_blocks and set_ext4_err_bit are only built for
userdebug and eng builds. rand_emmc_perf is marked optional, and
not included in any build by default.
Change-Id: I808174025d891f358ac54008371cb590e3c19f2f
/system/extras/tests/ext4/rand_emmc_perf.c
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