Em Thu, Dec 19, 2013 at 05:54:50PM -0500, Dongsheng Yang escreveu: > Hi all, > This patch add support of guest user space symbols for perf kvm command.
Cool stuff! Please see some comments on the patches, with requests for possible patch splits and better changeset comments. > Example: > # perf kvm --guestmount /tmp/guestmount/ top > Samples: 1K of event 'cycles', Event count (approx.): 259112905 > 17.34% libcrypto.so.1.0.1e [u] 0x000000000007d971 > 5.60% [guest.kernel] [g] kallsyms_expand_symbol > 5.44% libcrypto.so.1.0.1e [u] md5_block_asm_data_order > 4.09% [guest.kernel] [g] number.isra.1 > 3.59% [guest.kernel] [g] vsnprintf > 3.52% sshd [u] 0x00000000000441c0 > 2.37% [guest.kernel] [g] format_decode > 2.36% [guest.kernel] [g] memcpy > 2.11% [guest.kernel] [g] strnlen > > # perf kvm --guestmount /tmp/guestmount/ record -a sleep 1 > [ perf record: Woken up 1 times to write data ] > [ perf record: Captured and wrote 0.828 MB perf.data.guest (~36163 > samples) ] > > # perf kvm --guestmount /tmp/guestmount/ report > Samples: 4K of event 'cycles', Event count (approx.): 2662750816 > 8.67% [guest/9217] dd [u] > 0x0000000000004e90 > 6.62% [guest/9217] [guest.kernel.kallsyms.9217] [g] fget_light > 6.17% [guest/9217] [guest.kernel.kallsyms.9217] [g] system_call > 5.97% [guest/9217] [guest.kernel.kallsyms.9217] [g] > __srcu_read_lock > 5.53% [guest/9217] [guest.kernel.kallsyms.9217] [g] > __srcu_read_unlock > 5.47% [guest/9217] [guest.kernel.kallsyms.9217] [g] > __audit_syscall_exit > 5.38% [guest/9217] [guest.kernel.kallsyms.9217] [g] fsnotify > 5.32% [guest/9217] [guest.kernel.kallsyms.9217] [g] > system_call_after_swapgs > 4.45% [guest/9217] libc-2.17.so [u] > __GI___libc_write > 4.15% [guest/9217] [guest.kernel.kallsyms.9217] [g] sys_write > 3.97% [guest/9217] [guest.kernel.kallsyms.9217] [g] vfs_read > 3.78% [guest/9217] libc-2.17.so [u] > __GI___libc_read > > > Dongsheng Yang (4): > perf tools: Add support of guest in synthesize_threads. > perf tools: Add support for PERF_RECORD_MISC_GUEST_USER in > thread__find_addr_map(). > perf tools: Add support of user space symbols for guest in perf kvm > top. > perf tools: Add support of user space symbols for guest in perf kvm > record. > > tools/perf/builtin-record.c | 10 ++++++++++ > tools/perf/builtin-top.c | 15 ++++++++++----- > tools/perf/util/event.c | 44 ++++++++++++++++++++++++++++++-------------- > 3 files changed, 50 insertions(+), 19 deletions(-) > > -- > 1.8.2.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
