Cache Faults (MEMmemCacheFaultsPerSec)
Displays the frequency of cache faults. Cache faults occur whenever the cache manager does not find a file's page in the immediate cache.
Recommendations
The ratio of hard page faults to total page faults (that is, MEMmemPagesInputPerSec/MEMmemPageFaultsPerSec) should not be greater than about 0.05 to 0.10. If the ratio goes higher than this value, the system is spending too much time on paging activity, and you should consider installing additional memory resources.
- Instead of installing more memory, you may want to schedule memory intensive applications to run during off-peak hours, if possible.
- If your system uses multiple hard disks, you may want to spread the paging file across these disks and remove the paging file from the disk where the Windows system is located.
If MEMmemPagesPerSec is greater than 10 (10 is a reasonable number, but may vary with disk hardware) and MEMmemPageFaultsPerSec is greater than MEMmemCacheFaultsPerSec, the system is paging too much and you should install additional memory.
Thresholds for alarms and warnings
No default thresholds have been set for this parameter. The Baselining Overview topic may help you determine appropriate settings for your system.
Default properties
Property | Default value |
|---|---|
BMC PATROL properties | |
Application class | NT_MEMORY |
Command type | not applicable |
Icon style | graph |
Unit | seconds |
Border range | undefined |
Alarm1 range | undefined |
Alarm2 range | undefined |
Scheduling (poll time) | inherits poll time of collector |
Active at installation | no |
Parameter type | consumer |
Value set by | MEMMemoryColl |
BMC ProactiveNet Performance Management properties | |
Monitor type | Windows Memory Performance |
Key Performance Indicator | No |
Monitor for abnormalities | No |
Graph by default | No |
Availability | No |
Response time | No |
Normal distribution | Yes |
Statistical | Yes |