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Diffstat (limited to 'results/classifier/gemma3:12b/performance/1338957')
| -rw-r--r-- | results/classifier/gemma3:12b/performance/1338957 | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/results/classifier/gemma3:12b/performance/1338957 b/results/classifier/gemma3:12b/performance/1338957 new file mode 100644 index 00000000..e7eff4ef --- /dev/null +++ b/results/classifier/gemma3:12b/performance/1338957 @@ -0,0 +1,12 @@ + +RFE: add an event to report block devices watermark + +Add an event to report if a block device usage exceeds a threshold. The threshold should be configurable with a monitor command. The event should report the affected block device. Additional useful information could be the offset of the highest sector , like in the query-blockstats output. + +Rationale for the RFE +Managing applications, like oVirt (http://www.ovirt.org), make extensive use of thin-provisioned disk images. +In order to let the guest run flawlessly and be not unnecessarily paused, oVirt sets a watermark and automatically resized the image once the watermark is reached or exceeded. + +In order to detect the mark crossing, the managing application has no choice than aggressively polling the QEMU monitor +using the query-blockstats command. This lead to unnecessary system load, and is made even worse under scale: scenarios +with hunderds of VM are becoming not unusual. \ No newline at end of file |