diff options
Diffstat (limited to 'Documentation/admin-guide/perf/hns3-pmu.rst')
| -rw-r--r-- | Documentation/admin-guide/perf/hns3-pmu.rst | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/Documentation/admin-guide/perf/hns3-pmu.rst b/Documentation/admin-guide/perf/hns3-pmu.rst index 578407e487d6..1195e570f2d6 100644 --- a/Documentation/admin-guide/perf/hns3-pmu.rst +++ b/Documentation/admin-guide/perf/hns3-pmu.rst @@ -16,7 +16,7 @@ HNS3 PMU driver The HNS3 PMU driver registers a perf PMU with the name of its sicl id.:: - /sys/devices/hns3_pmu_sicl_<sicl_id> + /sys/bus/event_source/devices/hns3_pmu_sicl_<sicl_id> PMU driver provides description of available events, filter modes, format, identifier and cpumask in sysfs. @@ -40,9 +40,9 @@ device. Example usage of checking event code and subevent code:: - $# cat /sys/devices/hns3_pmu_sicl_0/events/dly_tx_normal_to_mac_time + $# cat /sys/bus/event_source/devices/hns3_pmu_sicl_0/events/dly_tx_normal_to_mac_time config=0x00204 - $# cat /sys/devices/hns3_pmu_sicl_0/events/dly_tx_normal_to_mac_packet_num + $# cat /sys/bus/event_source/devices/hns3_pmu_sicl_0/events/dly_tx_normal_to_mac_packet_num config=0x10204 Each performance statistic has a pair of events to get two values to @@ -53,14 +53,14 @@ two events have same value of bits 0~15 of config, that means they are event pair. And the bit 16 of config indicates getting counter 0 or counter 1 of hardware event. -After getting two values of event pair in usersapce, the formula of +After getting two values of event pair in userspace, the formula of computation to calculate real performance data is::: counter 0 / counter 1 Example usage of checking supported filter mode:: - $# cat /sys/devices/hns3_pmu_sicl_0/filtermode/bw_ssu_rpu_byte_num + $# cat /sys/bus/event_source/devices/hns3_pmu_sicl_0/filtermode/bw_ssu_rpu_byte_num filter mode supported: global/port/port-tc/func/func-queue/ Example usage of perf:: |