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@rfmoz rfmoz commented May 22, 2024

TCPRcvQDrop is a useful variable that counts the number of packets dropped due to either system-wide or per-socket memory pressure.

Their report on the default output could help to detect issues on the network stack.

More details about a real use case:
https://blog.cloudflare.com/when-the-window-is-not-fully-open-your-tcp-stack-is-doing-more-than-you-think/

It would be nice to have it on the default output.

Thanks,

@SuperQ
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SuperQ commented May 22, 2024

This needs a DCO sign-off. You can use git commit -s --amend to add it.

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LGTM

@SuperQ SuperQ merged commit 8a3a0de into prometheus:master Jul 14, 2024
v-zhuravlev pushed a commit to grafana/node_exporter that referenced this pull request Nov 1, 2024
Signed-off-by: Ricardo F <[email protected]>
Co-authored-by: Ricardo F <[email protected]>
Signed-off-by: Vitaly Zhuravlev <[email protected]>
SuperQ added a commit that referenced this pull request Feb 16, 2025
* [CHANGE] meminfo: Convert linux implementation to use procfs lib #3049
* [CHANGE] Update logging to use Go log/slog #3097
* [FEATURE] filesystem: Add `node_filesystem_mount_info` metric #2970
* [FEATURE] btrfs: Add metrics for commit statistics #3010
* [FEATURE] interrupts: Add collector include/exclude filtering #3028
* [FEATURE] interrupts: Add "exclude zeros" filtering #3028
* [FEATURE] slabinfo: Add filters for slab name. #3041
* [FEATURE] pressure: add IRQ PSI metrics #3048
* [FEATURE] hwmon: Add include and exclude filter for sensors #3072
* [FEATURE] filesystem: Add NetBSD support #3082
* [FEATURE] netdev: Add ifAlias label #3087
* [FEATURE] hwmon: Add Support for GPU Clock Frequencies #3093
* [FEATURE] Add `exclude[]` URL parameter #3116
* [FEATURE] Add AIX support #3136
* [FEATURE] filesystem: Add fs-types/mount-points include flags #3171
* [FEATURE] netstat: Add collector for tcp packet counters for FreeBSD. #3177
* [ENHANCEMENT] ethtool: Add logging for filtering flags #2979
* [ENHANCEMENT] netstat: Add TCPRcvQDrop to default metrics #3021
* [ENHANCEMENT] diskstats: Add block device rotational #3022
* [ENHANCEMENT] cpu: Support CPU online status #3032
* [ENHANCEMENT] arp: optimize interface name resolution #3133
* [ENHANCEMENT] textfile: Allow specifiying multiple directory globs #3135
* [ENHANCEMENT] filesystem: Add reporting of purgeable space on MacOS #3206
* [ENHANCEMENT] ethtool: Skip full scan of NetClass directories #3239
* [BUGFIX] zfs: Prevent `procfs` integer underflow #2961
* [BUGFIX] pressure: Fix collection on systems that do not expose a full CPU stat #3054
* [BUGFIX] cpu: Fix FreeBSD 32-bit host support and plug memory leak #3083
* [BUGFIX] hwmon: Add safety check to hwmon read #3134
* [BUGFIX] zfs: Allow space in dataset name #3186

Signed-off-by: Ben Kochie <[email protected]>
@SuperQ SuperQ mentioned this pull request Feb 16, 2025
SuperQ added a commit that referenced this pull request Feb 17, 2025
* [CHANGE] meminfo: Convert linux implementation to use procfs lib #3049
* [CHANGE] Update logging to use Go log/slog #3097
* [FEATURE] filesystem: Add `node_filesystem_mount_info` metric #2970
* [FEATURE] btrfs: Add metrics for commit statistics #3010
* [FEATURE] interrupts: Add collector include/exclude filtering #3028
* [FEATURE] interrupts: Add "exclude zeros" filtering #3028
* [FEATURE] slabinfo: Add filters for slab name. #3041
* [FEATURE] pressure: add IRQ PSI metrics #3048
* [FEATURE] hwmon: Add include and exclude filter for sensors #3072
* [FEATURE] filesystem: Add NetBSD support #3082
* [FEATURE] netdev: Add ifAlias label #3087
* [FEATURE] hwmon: Add Support for GPU Clock Frequencies #3093
* [FEATURE] Add `exclude[]` URL parameter #3116
* [FEATURE] Add AIX support #3136
* [FEATURE] filesystem: Add fs-types/mount-points include flags #3171
* [FEATURE] netstat: Add collector for tcp packet counters for FreeBSD. #3177
* [ENHANCEMENT] ethtool: Add logging for filtering flags #2979
* [ENHANCEMENT] netstat: Add TCPRcvQDrop to default metrics #3021
* [ENHANCEMENT] diskstats: Add block device rotational #3022
* [ENHANCEMENT] cpu: Support CPU online status #3032
* [ENHANCEMENT] arp: optimize interface name resolution #3133
* [ENHANCEMENT] textfile: Allow specifiying multiple directory globs #3135
* [ENHANCEMENT] filesystem: Add reporting of purgeable space on MacOS #3206
* [ENHANCEMENT] ethtool: Skip full scan of NetClass directories #3239
* [BUGFIX] zfs: Prevent `procfs` integer underflow #2961
* [BUGFIX] pressure: Fix collection on systems that do not expose a full CPU stat #3054
* [BUGFIX] cpu: Fix FreeBSD 32-bit host support and plug memory leak #3083
* [BUGFIX] hwmon: Add safety check to hwmon read #3134
* [BUGFIX] zfs: Allow space in dataset name #3186

Signed-off-by: Ben Kochie <[email protected]>
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3 participants