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 ~]#