metadata changes:
- log pmc sample rate with pmcallocate
- log proc flags with thread / process logging
to identify user vs kernel threads
fixes:
- use log cpuid to translate event id to event name
Implement rudimentary summary command to track sample
counts by thread and process name within a pmc log.
% make -j4 buildkernel >& /dev/null &
% sudo pmcstat -S unhalted_core_cycles -S llc-misses -O foo sleep 15
% pmc summary foo
cpu_clk_unhalted.thread_p_any:
idle: 138108207162
clang-6.0: 105336158004
sh: 72340108510
make: 8642012963
kernel: 7754011631
longest_lat_cache.miss:
clang-6.0: 87502625
sh: 40901227
make: 5500165
kernel: 3300099
awk:
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.. | ||
cmd_pmc_filter.cc | ||
cmd_pmc_list.c | ||
cmd_pmc_stat.c | ||
cmd_pmc_summary.cc | ||
cmd_pmc.h | ||
Makefile | ||
pmc_util.c | ||
pmc.c |