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Diffstat (limited to 'Documentation/ABI/testing/sysfs-bus-papr-pmem')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-papr-pmem | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-papr-pmem b/Documentation/ABI/testing/sysfs-bus-papr-pmem index 5b10d036a8d4..c1a67275c43f 100644 --- a/Documentation/ABI/testing/sysfs-bus-papr-pmem +++ b/Documentation/ABI/testing/sysfs-bus-papr-pmem @@ -25,3 +25,30 @@ Description: NVDIMM have been scrubbed. * "locked" : Indicating that NVDIMM contents cant be modified until next power cycle. + +What: /sys/bus/nd/devices/nmemX/papr/perf_stats +Date: May, 2020 +KernelVersion: v5.9 +Contact: linuxppc-dev <linuxppc-dev@lists.ozlabs.org>, linux-nvdimm@lists.01.org, +Description: + (RO) Report various performance stats related to papr-scm NVDIMM + device. Each stat is reported on a new line with each line + composed of a stat-identifier followed by it value. Below are + currently known dimm performance stats which are reported: + + * "CtlResCt" : Controller Reset Count + * "CtlResTm" : Controller Reset Elapsed Time + * "PonSecs " : Power-on Seconds + * "MemLife " : Life Remaining + * "CritRscU" : Critical Resource Utilization + * "HostLCnt" : Host Load Count + * "HostSCnt" : Host Store Count + * "HostSDur" : Host Store Duration + * "HostLDur" : Host Load Duration + * "MedRCnt " : Media Read Count + * "MedWCnt " : Media Write Count + * "MedRDur " : Media Read Duration + * "MedWDur " : Media Write Duration + * "CchRHCnt" : Cache Read Hit Count + * "CchWHCnt" : Cache Write Hit Count + * "FastWCnt" : Fast Write Count
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