Troubleshooting performance issues |
The following KA contains diagram showing the link between performance and heath issues Regarding the section "Problem 4: The hardware may be undersize" There are more details about this in the following KAs:
SSD (Solid State Drives) have been found to have much faster performance than traditional HDD (Hard Disk Drives). Specifically, some large customers have had great success with PureStorage Flash Array storage.
Discovery: How to quickly collect performance data for BMC Customer Support?
see the section "biggest folders" in the report. If you need more details about the persist queue:
To confirm:
If the TKU is not Jul23, Aug23 or Sept23, this root cause can be eliminated
If some parts of the product (ui, scan, startup, queries) are fast, this root cause can be eliminated If the hardware looks saturated, this root cause can be eliminated If the query below returns > 5M of Inference, the root cause is confirmed. search FLAGS (include_destroyed) Pattern where name matches 'ContainerdShim' show nodecount(traverse :Inference::) as 'Inference'
Note that disabling the pattern mentioned above is not expected to help.
To confirm:
If IBM.SpectrumLoadSharingFacility.IBM_SpectrumLoadSharingFacility is in the top 3 patterns (sorted by total execution time), the root cause is probable
If some parts of the product (ui, scan, startup, queries) are fast, this root cause can be eliminated If the hardware looks saturated, this root cause can be eliminated Workaround: Disable IBM_SpectrumLoadSharingFacility
If additional assistance is needed to improve performance, follow the steps documented here. |