View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000888 | channel: kernel/el7 | kernel-ml | public | 2019-01-02 16:05 | 2019-01-09 15:56 |
| Reporter | marc_o | Assigned To | burakkucat | ||
| Priority | normal | Severity | feature | Reproducibility | N/A |
| Status | resolved | Resolution | fixed | ||
| Summary | 0000888: Enable Pressure Stall Information (PSI) for kernel-ml 4.20 and newer | ||||
| Description | Please build the Mainline kernel with the new PSI feature enabled. To enabled this feature you have to build the kernel by setting the following "CONFIG_PSI=y" as described here: https://facebookmicrosites.github.io/psi/docs/overview | ||||
| Tags | No tags attached. | ||||
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Acknowledged. I see that when CONFIG_PSI is enabled a further option then becomes available, namely CONFIG_PSI_DEFAULT_DISABLED. The help for that latter option states -- "If set, pressure stall information tracking will be disabled per default but can be enabled through passing psi=1 on the kernel commandline during boot." As I do not have any knowledge or experience of pressure stall information tracking, I wonder if configuring the second option would be a good idea. Do you have any opinion, please? |
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Hello burakkucat, i do not have any knowledge or experience of pressure stall information tracking either. I think it would be the best to set CONFIG_PSI_DEFAULT_DISABLED=1.So everybody can decide on your own if you want to enable psi via passing psi=1 on the kernel commandline. |
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Thank you. So we are in agreement. The configuration changes, CONFIG_PSI=y and CONFIG_PSI_DEFAULT_DISABLED=y, have now been queued for the next build of the kernel-ml package set. |
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With the recent release of the kernel-ml-4.20.1-1.el7.elrepo package set [1] this configuration modification has been fulfilled. Now closing as "resolved/fixed". [1] http://lists.elrepo.org/pipermail/elrepo/2019-January/004636.html |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2019-01-02 16:05 | marc_o | New Issue | |
| 2019-01-02 16:05 | marc_o | Status | new => assigned |
| 2019-01-02 16:05 | marc_o | Assigned To | => burakkucat |
| 2019-01-02 16:19 | burakkucat | Note Added: 0006100 | |
| 2019-01-02 16:19 | burakkucat | Reproducibility | have not tried => N/A |
| 2019-01-03 02:51 | marc_o | Note Added: 0006101 | |
| 2019-01-03 08:27 | burakkucat | Note Added: 0006102 | |
| 2019-01-09 15:56 | burakkucat | Note Added: 0006106 | |
| 2019-01-09 15:56 | burakkucat | Status | assigned => resolved |
| 2019-01-09 15:56 | burakkucat | Resolution | open => fixed |
