Messages in this thread | | | Date | Tue, 27 Sep 2016 10:55:38 -0300 | From | Arnaldo Carvalho de Melo <> | Subject | using SDT events |
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Masami,
Testing something else (event aliases/JSON) I saw the many sdt events available via 'perf list', decided to use the usual workflow, failed, what am I doing wrong?
[root@jouet ~]# perf list sdt_qemu:pci*
List of pre-defined events (to be used in -e):
sdt_qemu:pci_cfg_read [SDT event] sdt_qemu:pci_cfg_write [SDT event] sdt_qemu:pci_update_mappings_add [SDT event] sdt_qemu:pci_update_mappings_del [SDT event] [root@jouet ~]# perf record -e sdt_qemu:pci* -a event syntax error: 'sdt_qemu:pci*' \___ unknown tracepoint
Error: File /sys/kernel/debug/tracing/events/sdt_qemu/pci* not found. Hint: Perhaps this kernel misses some CONFIG_ setting to enable this feature?.
Run 'perf list' for a list of valid events
Usage: perf record [<options>] [<command>] or: perf record [<options>] -- <command> [<options>]
-e, --event <event> event selector. use 'perf list' to list available events [root@jouet ~]#
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