* ref!: convert linux meminfo implementation to use procfs lib
Part of #2957
Prometheus' procfs lib supports collecting memory info and we're using a
new enough version of the lib that has it available, so this converts
the meminfo collector for Linux to use data from procfs lib instead. The
bits I've touched for darwin/openbsd/netbsd are with intent to preserve
the original struct implementation/backwards compatibility.
Signed-off-by: TJ Hoplock <t.hoplock@gmail.com>
* fix: meminfo debug log unsupported value
Fixes:
```
ts=2024-06-11T19:04:55.591Z caller=meminfo.go:44 level=debug collector=meminfo msg="Set node_mem" memInfo="unsupported value type"
```
Signed-off-by: TJ Hoplock <t.hoplock@gmail.com>
* fix: don't coerce nil Meminfo entries to 0, leave out if nil
Nil entries in procfs.Meminfo fields indicate that the value isn't
present on the system. Coercing those nil values to `0` introduces new
metrics on systems that should not be present and can break some
queries.
Addresses PR feedback:
https://github.com/prometheus/node_exporter/pull/3049#discussion_r1637581536https://github.com/prometheus/node_exporter/pull/3049#discussion_r1637584482
Signed-off-by: TJ Hoplock <t.hoplock@gmail.com>
---------
Signed-off-by: TJ Hoplock <t.hoplock@gmail.com>
Drop redundant GOOS build tags at start of file if the constraint is
already specified by the filename, e.g. foo_GOOS.go or
foo_GOOS_GOARCH.go, avoiding potential confusion in future.
cf. https://pkg.go.dev/cmd/go#hdr-Build_constraints
Signed-off-by: Daniel Swarbrick <daniel.swarbrick@gmail.com>
I have rewritten all CGO dependencies for OpenBSD amd64
using pure go, be able to crosscompile node_exporter.
Signed-off-by: ston1th <ston1th@giftfish.de>
This will now use `bcstats.numbufpages` instead of `uvmexp.vnodepages`.
Inspired by OpenBSD's `src/usr.bin/top`
Signed-off-by: Matthieu Guegan <matthieu.guegan@deindeal.ch>
All tools in OpenBSD base system use swpginuse instead of swpgonly
for reporting swap usage (snmpd, swapctl, top, vmstat), so let
memory collector use that as well for consistency.
* Improve stat linux metric names.
cpu is no longer used.
* node_cpu -> node_cpu_seconds_total for Linux
* Improve filesystem metric names with units
* Improve units and names of linux disk stats
Remove sector metrics, the bytes metrics cover those already.
* Infiniband counters should end in _total
* Improve timex metric names, convert to more normal units.
See
3c073991eb/kernel/time/ntp.c (L909)
for what stabil means, looks like a moving average of some form.
* Update test fixture
* For meminfo metrics that had "kB" units, add _bytes
* Interrupts counter should have _total
* Implements meminfo collector for OpenBSD
This is a rework of #151.
* Fix CGO import
* Add some useful metrics
* Rename total -> size for normalization
