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| author |  murgatroid99 <mlumish@google.com> | 2017-01-04 15:43:02 -0800 |
|---|---|---|
| committer | murgatroid99 <mlumish@google.com> | 2017-01-04 15:43:02 -0800 |
| commit | c34cac28912595814fb35225957eed0ddfd5d610 (patch) | |
| tree | 5b89408b87d756791e6c5dee2247bae3609565cc /tools/gce | |
| parent | 804c9e90fc4e7d11294fec69801ff7bc99134d3c (diff) | |
| parent | 360f5d2abf8cb0f92aeeb3a1b201d2eb3bd13374 (diff) | |
Merge branch 'master' into node_electron_build
Diffstat (limited to 'tools/gce')
| -rwxr-xr-x | tools/gce/linux_performance_worker_init.sh | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/tools/gce/linux_performance_worker_init.sh b/tools/gce/linux_performance_worker_init.sh index 523749ee81..ab29e015e0 100755 --- a/tools/gce/linux_performance_worker_init.sh +++ b/tools/gce/linux_performance_worker_init.sh @@ -150,3 +150,19 @@ sudo tar -C /usr/local -xzf go$GO_VERSION.$OS-$ARCH.tar.gz # Put go on the PATH, keep the usual installation dir sudo ln -s /usr/local/go/bin/go /usr/bin/go rm go$GO_VERSION.$OS-$ARCH.tar.gz + +# Install perf, to profile benchmarks. (need to get the right linux-tools-<> for kernel version) +sudo apt-get install -y linux-tools-common linux-tools-generic linux-tools-`uname -r` +# see http://unix.stackexchange.com/questions/14227/do-i-need-root-admin-permissions-to-run-userspace-perf-tool-perf-events-ar +echo 0 | sudo tee /proc/sys/kernel/perf_event_paranoid +# see http://stackoverflow.com/questions/21284906/perf-couldnt-record-kernel-reference-relocation-symbol +echo 0 | sudo tee /proc/sys/kernel/kptr_restrict + +# qps workers under perf appear to need a lot of mmap pages under certain scenarios and perf args in +# order to not lose perf events or time out +echo 4096 | sudo tee /proc/sys/kernel/perf_event_mlock_kb + +# Fetch scripts to generate flame graphs from perf data collected +# on benchmarks +git clone -v https://github.com/brendangregg/FlameGraph ~/FlameGraph + |