83 lines
2.0 KiB
Plaintext
83 lines
2.0 KiB
Plaintext
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parse_memory_prof_results.py:
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=============================
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parse_memory_prof_results.py produces histograms and/or graphs from the
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output of the `memory_prof -e' test.
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USAGE:
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See `parse_memory_prof_results.py -h'
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DEPENDECIES:
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- Python package: matplotlib (only required for graphical
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plots)
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- Python package: numpy (only required for graphical plots)
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TARGETS:
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Applicable on all targets where the memory_prof test runs.
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tracepoint_parser.sh:
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=====================
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tracepoint_parser.sh runs the memory_prof kernel test with
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some interesting memory-related ftrace events enabled. It then
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parses the log and outputs some statistics regarding
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high-order page allocation ratios, allocation failure ratios,
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etc.
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USAGE:
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See `tracepoint_parser.sh -h'
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DEPENDENCIES:
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- Kernel config: CONFIG_FTRACE
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TARGETS:
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Applicable on all targets where the memory_prof test runs.
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trace_2_alloc_profile.py
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========================
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trace_2_alloc_profile.py converts ftrace logs into allocation
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profiles suitable for usage with `memory_prof -e -i'.
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Quickstart guide:
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1) Enable Ion tracepoints
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# (device) echo function > /sys/kernel/debug/current_tracer
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# (device) echo 1 > /sys/kernel/debug/tracing/events/kmem/enable
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2) Run your use case on the device
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3) Download the trace file (adb pull, or similar)
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$ (host) adb pull /sys/kernel/debug/tracing/trace
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4) Stop tracing
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# (device) echo 0 > /sys/kernel/debug/tracing/events
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# (device) echo nop > /sys/kernel/debug/current_tracer
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5) Run the downloaded trace through trace_2_alloc_profile.py
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$ (host) python2 trace_2_alloc_profile.py trace
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USAGE:
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See Quickstart above and `trace_2_alloc_profile.py -h'
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DEPENDENCIES:
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- Kernel config: CONFIG_FTRACE
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TARGETS:
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Applicable on all targets where the memory_prof test runs.
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