Linux CPU: Cache CPU metrics #1711
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
SuperQ
force-pushed
the
superq/cpu_cache
branch
3 times, most recently
from
da17db9 to
9619e48
Compare
|
@roidelapluie Hmm, good question. |
|
I added a lock around the read phase. |
|
Because before we were iterating over stats, which was local to the function. c.cpuStats is shared AND old versions of prometheus used to scrape at the same time for HA pairs so for people running those old versions the risk of panic in face of R/W of a map is far from being nil. |
SuperQ
force-pushed
the
superq/cpu_cache
branch
2 times, most recently
from
5e38937 to
27e2e92
Compare
|
(My reply is hiddeb by Github but panicking on the CPU stats would be recovered by the http handler.) |
I'm not intending to log all old a and new. Only on problems. |
|
I propose we log it on |
Cache CPU metrics to avoid counters (ie iowait) jumping backwards. Fixes: #1686 Signed-off-by: Ben Kochie <[email protected]>
SuperQ
added a commit
that referenced
this pull request
May 25, 2020
* The netdev collector CLI argument `--collector.netdev.ignored-devices` was renamed to `--collector.netdev.device-blacklist` in order to conform with the systemd collector. #1279 * The label named `state` on `node_systemd_service_restart_total` metrics was changed to `name` to better describe the metric. #1393 * Refactoring of the mdadm collector changes several metrics - `node_md_disks_active` is removed - `node_md_disks` now has a `state` label for "fail", "spare", "active" disks. - `node_md_is_active` is replaced by `node_md_state` with a state set of "active", "inactive", "recovering", "resync". * Additional label `mountaddr` added to NFS device metrics to distinguish mounts from the same URL, but different IP addresses. #1417 * Metrics node_cpu_scaling_frequency_min_hrts and node_cpu_scaling_frequency_max_hrts of the cpufreq collector were renamed to node_cpu_scaling_frequency_min_hertz and node_cpu_scaling_frequency_max_hertz. #1510 * Collectors that are enabled, but are unable to find data to collect, now return 0 for `node_scrape_collector_success`. * [CHANGE] Add `--collector.netdev.device-whitelist`. #1279 * [CHANGE] Ignore iso9600 filesystem on Linux #1355 * [CHANGE] Refactor mdadm collector #1403 * [CHANGE] Add `mountaddr` label to NFS metrics. #1417 * [CHANGE] Don't count empty collectors as success. #1613 * [FEATURE] New flag to disable default collectors #1276 * [FEATURE] Add experimental TLS support #1277, #1687, #1695 * [FEATURE] Add collector for Power Supply Class #1280 * [FEATURE] Add new schedstat collector #1389 * [FEATURE] Add FreeBSD zfs support #1394 * [FEATURE] Add uname support for Darwin and OpenBSD #1433 * [FEATURE] Add new metric node_cpu_info #1489 * [FEATURE] Add new thermal_zone collector #1425 * [FEATURE] Add new cooling_device metrics to thermal zone collector #1445 * [FEATURE] Add swap usage on darwin #1508 * [FEATURE] Add Btrfs collector #1512 * [FEATURE] Add RAPL collector #1523 * [FEATURE] Add new softnet collector #1576 * [FEATURE] Add new udp_queues collector #1503 * [FEATURE] Add basic authentication #1673 * [ENHANCEMENT] Log pid when there is a problem reading the process stats #1341 * [ENHANCEMENT] Collect InfiniBand port state and physical state #1357 * [ENHANCEMENT] Include additional XFS runtime statistics. #1423 * [ENHANCEMENT] Report non-fatal collection errors in the exporter metric. #1439 * [ENHANCEMENT] Expose IPVS firewall mark as a label #1455 * [ENHANCEMENT] Add check for systemd version before attempting to query certain metrics. #1413 * [ENHANCEMENT] Add a flag to adjust mount timeout #1486 * [ENHANCEMENT] Add new counters for flush requests in Linux 5.5 #1548 * [ENHANCEMENT] Add metrics and tests for UDP receive and send buffer errors #1534 * [ENHANCEMENT] The sockstat collector now exposes IPv6 statistics in addition to the existing IPv4 support. #1552 * [ENHANCEMENT] Add infiniband info metric #1563 * [ENHANCEMENT] Add unix socket support for supervisord collector #1592 * [ENHANCEMENT] Implement loadavg on all BSDs without cgo #1584 * [ENHANCEMENT] Add model_name and stepping to node_cpu_info metric #1617 * [ENHANCEMENT] Add `--collector.perf.cpus` to allow setting the CPU list for perf stats. #1561 * [ENHANCEMENT] Add metrics for IO errors and retires on Darwin. #1636 * [ENHANCEMENT] Add perf tracepoint collection flag #1664 * [ENHANCEMENT] ZFS: read contents of objset file #1632 * [ENHANCEMENT] Linux CPU: Cache CPU metrics to make them monotonically increasing #1711 * [BUGFIX] Read /proc/net files with a single read syscall #1380 * [BUGFIX] Renamed label `state` to `name` on `node_systemd_service_restart_total`. #1393 * [BUGFIX] Fix netdev nil reference on Darwin #1414 * [BUGFIX] Strip path.rootfs from mountpoint labels #1421 * [BUGFIX] Fix seconds reported by schedstat #1426 * [BUGFIX] Fix empty string in path.rootfs #1464 * [BUGFIX] Fix typo in cpufreq metric names #1510 * [BUGFIX] Read /proc/stat in one syscall #1538 * [BUGFIX] Fix OpenBSD cache memory information #1542 * [BUGFIX] Refactor textfile collector to avoid looping defer #1549 * [BUGFIX] Fix network speed math #1580 * [BUGFIX] collector/systemd: use regexp to extract systemd version #1647 * [BUGFIX] Fix initialization in perf collector when using multiple CPUs #1665 * [BUGFIX] Fix accidentally empty lines in meminfo_linux #1671 Signed-off-by: Ben Kochie <[email protected]>
Merged
oblitorum
pushed a commit
to shatteredsilicon/node_exporter
that referenced
this pull request
Apr 9, 2024
* The netdev collector CLI argument `--collector.netdev.ignored-devices` was renamed to `--collector.netdev.device-blacklist` in order to conform with the systemd collector. prometheus#1279 * The label named `state` on `node_systemd_service_restart_total` metrics was changed to `name` to better describe the metric. prometheus#1393 * Refactoring of the mdadm collector changes several metrics - `node_md_disks_active` is removed - `node_md_disks` now has a `state` label for "fail", "spare", "active" disks. - `node_md_is_active` is replaced by `node_md_state` with a state set of "active", "inactive", "recovering", "resync". * Additional label `mountaddr` added to NFS device metrics to distinguish mounts from the same URL, but different IP addresses. prometheus#1417 * Metrics node_cpu_scaling_frequency_min_hrts and node_cpu_scaling_frequency_max_hrts of the cpufreq collector were renamed to node_cpu_scaling_frequency_min_hertz and node_cpu_scaling_frequency_max_hertz. prometheus#1510 * Collectors that are enabled, but are unable to find data to collect, now return 0 for `node_scrape_collector_success`. * [CHANGE] Add `--collector.netdev.device-whitelist`. prometheus#1279 * [CHANGE] Ignore iso9600 filesystem on Linux prometheus#1355 * [CHANGE] Refactor mdadm collector prometheus#1403 * [CHANGE] Add `mountaddr` label to NFS metrics. prometheus#1417 * [CHANGE] Don't count empty collectors as success. prometheus#1613 * [FEATURE] New flag to disable default collectors prometheus#1276 * [FEATURE] Add experimental TLS support prometheus#1277, prometheus#1687, prometheus#1695 * [FEATURE] Add collector for Power Supply Class prometheus#1280 * [FEATURE] Add new schedstat collector prometheus#1389 * [FEATURE] Add FreeBSD zfs support prometheus#1394 * [FEATURE] Add uname support for Darwin and OpenBSD prometheus#1433 * [FEATURE] Add new metric node_cpu_info prometheus#1489 * [FEATURE] Add new thermal_zone collector prometheus#1425 * [FEATURE] Add new cooling_device metrics to thermal zone collector prometheus#1445 * [FEATURE] Add swap usage on darwin prometheus#1508 * [FEATURE] Add Btrfs collector prometheus#1512 * [FEATURE] Add RAPL collector prometheus#1523 * [FEATURE] Add new softnet collector prometheus#1576 * [FEATURE] Add new udp_queues collector prometheus#1503 * [FEATURE] Add basic authentication prometheus#1673 * [ENHANCEMENT] Log pid when there is a problem reading the process stats prometheus#1341 * [ENHANCEMENT] Collect InfiniBand port state and physical state prometheus#1357 * [ENHANCEMENT] Include additional XFS runtime statistics. prometheus#1423 * [ENHANCEMENT] Report non-fatal collection errors in the exporter metric. prometheus#1439 * [ENHANCEMENT] Expose IPVS firewall mark as a label prometheus#1455 * [ENHANCEMENT] Add check for systemd version before attempting to query certain metrics. prometheus#1413 * [ENHANCEMENT] Add a flag to adjust mount timeout prometheus#1486 * [ENHANCEMENT] Add new counters for flush requests in Linux 5.5 prometheus#1548 * [ENHANCEMENT] Add metrics and tests for UDP receive and send buffer errors prometheus#1534 * [ENHANCEMENT] The sockstat collector now exposes IPv6 statistics in addition to the existing IPv4 support. prometheus#1552 * [ENHANCEMENT] Add infiniband info metric prometheus#1563 * [ENHANCEMENT] Add unix socket support for supervisord collector prometheus#1592 * [ENHANCEMENT] Implement loadavg on all BSDs without cgo prometheus#1584 * [ENHANCEMENT] Add model_name and stepping to node_cpu_info metric prometheus#1617 * [ENHANCEMENT] Add `--collector.perf.cpus` to allow setting the CPU list for perf stats. prometheus#1561 * [ENHANCEMENT] Add metrics for IO errors and retires on Darwin. prometheus#1636 * [ENHANCEMENT] Add perf tracepoint collection flag prometheus#1664 * [ENHANCEMENT] ZFS: read contents of objset file prometheus#1632 * [ENHANCEMENT] Linux CPU: Cache CPU metrics to make them monotonically increasing prometheus#1711 * [BUGFIX] Read /proc/net files with a single read syscall prometheus#1380 * [BUGFIX] Renamed label `state` to `name` on `node_systemd_service_restart_total`. prometheus#1393 * [BUGFIX] Fix netdev nil reference on Darwin prometheus#1414 * [BUGFIX] Strip path.rootfs from mountpoint labels prometheus#1421 * [BUGFIX] Fix seconds reported by schedstat prometheus#1426 * [BUGFIX] Fix empty string in path.rootfs prometheus#1464 * [BUGFIX] Fix typo in cpufreq metric names prometheus#1510 * [BUGFIX] Read /proc/stat in one syscall prometheus#1538 * [BUGFIX] Fix OpenBSD cache memory information prometheus#1542 * [BUGFIX] Refactor textfile collector to avoid looping defer prometheus#1549 * [BUGFIX] Fix network speed math prometheus#1580 * [BUGFIX] collector/systemd: use regexp to extract systemd version prometheus#1647 * [BUGFIX] Fix initialization in perf collector when using multiple CPUs prometheus#1665 * [BUGFIX] Fix accidentally empty lines in meminfo_linux prometheus#1671 Signed-off-by: Ben Kochie <[email protected]>
oblitorum
pushed a commit
to shatteredsilicon/node_exporter
that referenced
this pull request
Apr 9, 2024
* The netdev collector CLI argument `--collector.netdev.ignored-devices` was renamed to `--collector.netdev.device-blacklist` in order to conform with the systemd collector. prometheus#1279 * The label named `state` on `node_systemd_service_restart_total` metrics was changed to `name` to better describe the metric. prometheus#1393 * Refactoring of the mdadm collector changes several metrics - `node_md_disks_active` is removed - `node_md_disks` now has a `state` label for "fail", "spare", "active" disks. - `node_md_is_active` is replaced by `node_md_state` with a state set of "active", "inactive", "recovering", "resync". * Additional label `mountaddr` added to NFS device metrics to distinguish mounts from the same URL, but different IP addresses. prometheus#1417 * Metrics node_cpu_scaling_frequency_min_hrts and node_cpu_scaling_frequency_max_hrts of the cpufreq collector were renamed to node_cpu_scaling_frequency_min_hertz and node_cpu_scaling_frequency_max_hertz. prometheus#1510 * Collectors that are enabled, but are unable to find data to collect, now return 0 for `node_scrape_collector_success`. * [CHANGE] Add `--collector.netdev.device-whitelist`. prometheus#1279 * [CHANGE] Ignore iso9600 filesystem on Linux prometheus#1355 * [CHANGE] Refactor mdadm collector prometheus#1403 * [CHANGE] Add `mountaddr` label to NFS metrics. prometheus#1417 * [CHANGE] Don't count empty collectors as success. prometheus#1613 * [FEATURE] New flag to disable default collectors prometheus#1276 * [FEATURE] Add experimental TLS support prometheus#1277, prometheus#1687, prometheus#1695 * [FEATURE] Add collector for Power Supply Class prometheus#1280 * [FEATURE] Add new schedstat collector prometheus#1389 * [FEATURE] Add FreeBSD zfs support prometheus#1394 * [FEATURE] Add uname support for Darwin and OpenBSD prometheus#1433 * [FEATURE] Add new metric node_cpu_info prometheus#1489 * [FEATURE] Add new thermal_zone collector prometheus#1425 * [FEATURE] Add new cooling_device metrics to thermal zone collector prometheus#1445 * [FEATURE] Add swap usage on darwin prometheus#1508 * [FEATURE] Add Btrfs collector prometheus#1512 * [FEATURE] Add RAPL collector prometheus#1523 * [FEATURE] Add new softnet collector prometheus#1576 * [FEATURE] Add new udp_queues collector prometheus#1503 * [FEATURE] Add basic authentication prometheus#1673 * [ENHANCEMENT] Log pid when there is a problem reading the process stats prometheus#1341 * [ENHANCEMENT] Collect InfiniBand port state and physical state prometheus#1357 * [ENHANCEMENT] Include additional XFS runtime statistics. prometheus#1423 * [ENHANCEMENT] Report non-fatal collection errors in the exporter metric. prometheus#1439 * [ENHANCEMENT] Expose IPVS firewall mark as a label prometheus#1455 * [ENHANCEMENT] Add check for systemd version before attempting to query certain metrics. prometheus#1413 * [ENHANCEMENT] Add a flag to adjust mount timeout prometheus#1486 * [ENHANCEMENT] Add new counters for flush requests in Linux 5.5 prometheus#1548 * [ENHANCEMENT] Add metrics and tests for UDP receive and send buffer errors prometheus#1534 * [ENHANCEMENT] The sockstat collector now exposes IPv6 statistics in addition to the existing IPv4 support. prometheus#1552 * [ENHANCEMENT] Add infiniband info metric prometheus#1563 * [ENHANCEMENT] Add unix socket support for supervisord collector prometheus#1592 * [ENHANCEMENT] Implement loadavg on all BSDs without cgo prometheus#1584 * [ENHANCEMENT] Add model_name and stepping to node_cpu_info metric prometheus#1617 * [ENHANCEMENT] Add `--collector.perf.cpus` to allow setting the CPU list for perf stats. prometheus#1561 * [ENHANCEMENT] Add metrics for IO errors and retires on Darwin. prometheus#1636 * [ENHANCEMENT] Add perf tracepoint collection flag prometheus#1664 * [ENHANCEMENT] ZFS: read contents of objset file prometheus#1632 * [ENHANCEMENT] Linux CPU: Cache CPU metrics to make them monotonically increasing prometheus#1711 * [BUGFIX] Read /proc/net files with a single read syscall prometheus#1380 * [BUGFIX] Renamed label `state` to `name` on `node_systemd_service_restart_total`. prometheus#1393 * [BUGFIX] Fix netdev nil reference on Darwin prometheus#1414 * [BUGFIX] Strip path.rootfs from mountpoint labels prometheus#1421 * [BUGFIX] Fix seconds reported by schedstat prometheus#1426 * [BUGFIX] Fix empty string in path.rootfs prometheus#1464 * [BUGFIX] Fix typo in cpufreq metric names prometheus#1510 * [BUGFIX] Read /proc/stat in one syscall prometheus#1538 * [BUGFIX] Fix OpenBSD cache memory information prometheus#1542 * [BUGFIX] Refactor textfile collector to avoid looping defer prometheus#1549 * [BUGFIX] Fix network speed math prometheus#1580 * [BUGFIX] collector/systemd: use regexp to extract systemd version prometheus#1647 * [BUGFIX] Fix initialization in perf collector when using multiple CPUs prometheus#1665 * [BUGFIX] Fix accidentally empty lines in meminfo_linux prometheus#1671 Signed-off-by: Ben Kochie <[email protected]>
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Cache CPU metrics to avoid counters (ie iowait) jumping backwards.
Fixes: #1686
Signed-off-by: Ben Kochie [email protected]