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Subject: [pve-devel] [PATCH pve-common/pve-manager/qemu-server 0/3] Fix
#5708: Add CPU raw counters
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From: Sascha Westermann <sascha.westermann@hl-services.de>
To: pve-devel@lists.proxmox.com
Cc: Sascha Westermann <sascha.westermann@hl-services.de>
Subject: [PATCH pve-common/pve-manager/qemu-server 0/3] Fix #5708: Add CPU raw counters
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To monitor the CPU utilization of nodes and Qemu VMs at arbitrary
intervals (e.g. every 30 seconds) via the Proxmox API, there are no
suitable endpoints right now:
/api2/json/nodes/{node}/status (cpu): Instant value
/api2/json/nodes/{node}/rrddata?timeframe=hour (cpu): Average values
per minute
/api2/json/nodes/{node}/qemu (cpu): Instant value
/api2/json/nodes/{node}/qemu/{vmid}/rrddata?timeframe=hour (cpu):
Average values per minute
Instant values have the disadvantage that short-term peaks distort the
value. The average values from rrddata provide usable average values,
but you are restricted to a minute time window and the values can be
up to one minute old.
The following patches add raw counter values to a "cpustat" map in
the corresponding endpoints.
pve-common:
Sascha Westermann (1):
Add CPU raw counters
src/PVE/ProcFSTools.pm | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
pve-manager:
Sascha Westermann (1):
Add CPU raw counters
PVE/API2/Nodes.pm | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
qemu-server:
Sascha Westermann (1):
Add CPU raw counters
PVE/QemuServer.pm | 55 +++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 53 insertions(+), 2 deletions(-)
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