tree f296d15f00c2a2d931a587762ba6a76efc62c71c
parent 86e7a1618c3005a5f33b56d8ee7ab159485a1dd8
author Yabin Cui <yabinc@google.com> 1721151021 -0700
committer Yabin Cui <yabinc@google.com> 1721172962 -0700

simpleperf: Add -z in the record cmd

When -z is used, records are compressed before saved to disk.
Below are two examples:

$ ./simpleperf record -g --duration 1 -a -z
simpleperf I cmd_record.cpp:914] Samples recorded: 23,149. Samples lost: 0.
simpleperf I cmd_record.cpp:919] Record compressed: 844.83 KB (original 9.22 MB, ratio 11)

$ ./simpleperf record -g --duration 1 -a -z --no-unwind
simpleperf I cmd_record.cpp:914] Samples recorded: 22,467. Samples lost: 0.
simpleperf I cmd_record.cpp:919] Record compressed: 11.32 MB (original 259.61 MB, ratio 22)

Bug: 343557442
Test: run simpleperf_unit_test
Change-Id: Icfbea98d508395412f05d5e79f847a2b4794eaee