98eb435d90
proxmox-rrd: use syncfs after writing rrd files
...
Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
2021-10-19 11:17:09 +02:00
7484fce24d
proxmox-rrd: cleanup - use slot_end_time()
2021-10-14 16:29:00 +02:00
f28a713e2b
proxmox-rrd: cleanup - use staturating_add instead of if/else
2021-10-14 16:10:55 +02:00
a9017805b7
proxmox-rrd: improve dev docs
2021-10-14 11:53:54 +02:00
d531c7ae61
proxmox-rrd: add more regression tests
2021-10-14 10:55:12 +02:00
7df1580fa6
proxmox-rrd: add regression tests and two minor fixes
2021-10-14 10:17:07 +02:00
bacc99c7f8
proxmox-rrd: add more commands to the rrd cli tool
...
Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
2021-10-13 13:36:02 +02:00
6728d0977b
proxmox-rrd: rename last_counter to last_value
...
Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
2021-10-13 13:36:02 +02:00
bff7c027c9
proxmox-rrd: protect against negative update time
...
Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
2021-10-13 13:36:02 +02:00
79b3113361
proxmox-rrd: new helpers: slot, slot_start_time & slot_end_time
...
Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
2021-10-13 13:36:02 +02:00
5885767b91
proxmox-rrd: avoid expensive modulo (%) inside loop
...
Modulo is very slow, so we try to avoid it inside loops.
Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
2021-10-13 13:36:02 +02:00
03664514ab
proxmox-rrd: support CF::Last
...
Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
2021-10-13 13:36:02 +02:00
426dda0730
proxmox-rrd: extract_data: include values from current slot
...
Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
2021-10-13 13:36:02 +02:00
eb37d4ece2
proxmox-rrd: remove dependency to proxmox-rrd-api-types
...
Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
2021-10-13 13:36:02 +02:00
1198f8d4e6
proxmox-rrd: implement new CBOR based format
...
Storing much more data points now got get better graphs.
Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
2021-10-13 13:36:02 +02:00
1d44f175c6
proxmox-rrd: use a journal to reduce amount of bytes written
...
Append pending changes in a simple text based format that allows for
lockless appends as long as we stay below 4 KiB data per write.
Apply the journal every 30 minutes and on daemon startup.
Note that we do not ensure that the journal is synced, this is a
perfomance optimization we can make as the kernel defaults to
writeback in-flight data every 30s (sysctl vm/dirty_expire_centisecs)
anyway, so we lose at max half a minute of data on a crash, here one
should have in mind that we normally expose 1 minute as finest
granularity anyway, so not really much lost.
Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
2021-10-13 13:36:02 +02:00
3cc23ca6cc
proxmox-rrd: cleanup error handling
2021-10-07 08:01:12 +02:00
3def6bfc64
proxmox-rrd: use log crate instead of eprintln, avoid duplicate logs
2021-10-06 18:19:22 +02:00
18e8bc17e4
proxmox-rrd: fix update (do not update) when time is in the past
2021-10-06 18:01:48 +02:00
0191759316
proxmox-rrd: improve developer docs
2021-10-06 12:19:54 +02:00
d1c3bc5350
split out RRD api types into proxmox-rrd-api-types crate
2021-10-06 09:49:51 +02:00
09340f28f5
move RRD code into proxmox-rrd crate
2021-10-06 08:13:28 +02:00
Dietmar Maurer