perf/Documentation/perf.data-directory-format.txt

1 perf.data directory format
4            in following versions of perf. We will remove this
8 This document describes the on-disk perf.data directory format.
20   - there is a single perf.data file named 'data' within the directory.
23     $ tree -ps perf.data
24     perf.data
30 Currently the only 'perf record' option to output to a directory is
34   $ sudo perf record --kcore uname
36   [ perf record: Woken up 1 times to write data ]
37   [ perf record: Captured and wrote 0.015 MB perf.data (9 samples) ]
38   $ sudo tree -ps perf.data
39   perf.data
47   $ sudo perf script -v
53   Using perf.data/kcore_dir/kcore for kernel data
54   Using perf.data/kcore_dir/kallsyms for symbols
55 …     perf 15316 2060795.480902:          1 cycles:  ffffffffa2caa548 native_write_msr+0x8 (vmlinux)
56 …     perf 15316 2060795.480906:          1 cycles:  ffffffffa2caa548 native_write_msr+0x8 (vmlinux)
57 …     perf 15316 2060795.480908:          7 cycles:  ffffffffa2caa548 native_write_msr+0x8 (vmlinux)
58 …     perf 15316 2060795.480910:        119 cycles:  ffffffffa2caa54a native_write_msr+0xa (vmlinux)
59 …perf 15316 2060795.480912:       2109 cycles:  ffffffffa2c9b7b0 native_apic_msr_write+0x0 (vmlinux)
60 …perf 15316 2060795.480914:      37606 cycles:  ffffffffa2f121fe perf_event_addr_filters_exec+0x2e …