The goal of this patchseries is to make it more intuitive to understand the memory usage of an instance by splitting the memory usage graph into 'Used', 'Buffer/Cache', 'ZFS Arc' and 'Free' instead of 'Total' and 'RAM usage', displayed as different colored segments in a stacking graph that adds up to the total memory. Previously, the zfs arc counted towards the used memory, which could give a skewed perspective, since there is no visual difference between almost all memory being used with next to no arc or half of the memory used with a big arc.
Since there has already been a heated discussion on Bugzilla [0] on what to display, I thought I would post this as an RFC before I finish up the patchseries. Another question would be if other places that display the memory usage should also be split, i.e. the progress bar and gauge chart in the cluster overview. Previously they included the zfs arc, with this series the arc is not counted as used memory, since it technically can be freed (with some caveats). Unfortunately, there is a visual inconsistency with the way that missing data is displayed in the new graph, since it seems impossible to display missing data as a gap when using an area graph, which is possible and the default in the line graph that is used throughout the rest of the ui. Note that applying this patch will currently reset your metrics, so you'll have to wait a bit to see results. [0] https://bugzilla.proxmox.com/show_bug.cgi?id=1454 cluster: Folke Gleumes (1): rrd: add free, buffer/cache and arc size to memory statistics src/pmxcfs/status.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) common: Folke Gleumes (1): add more detailed statistics to memory report src/PVE/ProcFSTools.pm | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) widget-toolkit: Folke Gleumes (1): add option to display rrd graph as stacking src/panel/RRDChart.js | 59 +++++++++++++++++++++++++++++++++---------- 1 file changed, 46 insertions(+), 13 deletions(-) manager: Folke Gleumes (1): split ram usage into usage types PVE/API2/Nodes.pm | 6 +++--- PVE/API2Tools.pm | 2 +- PVE/Service/pvestatd.pm | 15 +++++++++++---- www/manager6/node/Summary.js | 6 ++++-- 4 files changed, 19 insertions(+), 10 deletions(-) -- 2.39.2 _______________________________________________ pve-devel mailing list pve-devel@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
