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| author | Mohan Srinivasan <srmohan@google.com> | 2017-03-09 11:24:38 -0800 |
|---|---|---|
| committer | Mohan Srinivasan <srmohan@google.com> | 2017-03-15 12:14:10 -0700 |
| commit | 9d00a124c5591198264ffedf0ba4c73bddfc346f (patch) | |
| tree | 1883df6e56f077ce40ae6ce7a152671a749b96af /ioshark/README | |
| parent | 7db706e162e76764ebca62c4f2808ac6e0940b52 (diff) | |
| download | extras-9d00a124c5591198264ffedf0ba4c73bddfc346f.tar.gz | |
IOshark support to parse Linux filesystem ftraces.
IOshark support to input filesystem ftracepooints (readpage(s))
to capture and replay mmap'ed IO (which aren't captured by strace).
The new script collect-straces-ftraces.sh enables the necessary
tracepoints, and collects ftraces and straces compiles these into
intermediate bytecodes which ioshark_bench can then execute.
Test: Generate several monkey based workloads, and use the script
mentioned above to generate bytecodes and feed those into
ioshark_bench.
Change-Id: Iae57f5fdcdce0fedfd85c8d64ee006cc8b5b470d
Signed-off-by: Mohan Srinivasan <srmohan@google.com>
Diffstat (limited to 'ioshark/README')
| -rw-r--r-- | ioshark/README | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/ioshark/README b/ioshark/README index ee2f426b..0c50fec3 100644 --- a/ioshark/README +++ b/ioshark/README @@ -3,11 +3,11 @@ can find more documentation on IOshark at : https://docs.google.com/a/google.com/document/d/1Bhq7iNPVc_JzwRrkmZqcPjMvWgpHX0r3Ncq-ZsRNOBA/edit?usp=sharing The short summary of what IOshark is : IOshark has 2 components, one -is a strace compiler that takes straces fed into it and compiles this -into bytecodes (stored in *.wl files). The compiler runs on a Linux -host. The second component (which runs on the device) is the tester -that takes as input the bytecode files (*.wl files) and executes them -on the device. +is a strace+ftrace compiler that takes straces and select ftraces fed +into it and compiles this into bytecodes (stored in *.wl files). The +compiler runs on a Linux host. The second component (which runs on the +device) is the tester that takes as input the bytecode files (*.wl +files) and executes them on the device. How to Run : ---------- @@ -25,3 +25,6 @@ seen in the original straces. -t <N> : Limit to N threads. By default (without this option), IOshark will launch as many threads as there are input files, so 1 thread/file. -v : verbose. Chatty mode. +-s : One line summary. +-q : Don't create the files in read-only partitions like /system and +/vendor. Instead do reads on those files. |