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| author |   Tibor Frank <tifrank@cisco.com> | 2023-05-03 13:53:27 +0000 |
|---|---|---|
| committer | Tibor Frank <tifrank@cisco.com> | 2023-05-09 05:56:22 +0000 |
| commit | 374954b9d648f503f6783325a1266457953a998d (patch) | |
| tree | 5514dee6af2a2e069189efe39d4e929dd25721f7 /docs/content/methodology/telemetry.md | |
| parent | 46eac7bb697e8261dba5b439a15f5a6125f31760 (diff) | |
C-Docs: New structure
Change-Id: I73d107f94b28b138f3350a9e1eedb0555583a9ca
Signed-off-by: Tibor Frank <tifrank@cisco.com>
Diffstat (limited to 'docs/content/methodology/telemetry.md')
| -rw-r--r-- | docs/content/methodology/telemetry.md | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/docs/content/methodology/telemetry.md b/docs/content/methodology/telemetry.md deleted file mode 100644 index e7a2571573..0000000000 --- a/docs/content/methodology/telemetry.md +++ /dev/null @@ -1,167 +0,0 @@ ---- -title: "Telemetry" -weight: 20 ---- - -# Telemetry - -OpenMetrics specifies the de-facto standard for transmitting cloud-native -metrics at scale, with support for both text representation and Protocol -Buffers. - -## RFC - -- RFC2119 -- RFC5234 -- RFC8174 -- draft-richih-opsawg-openmetrics-00 - -## Reference - -[OpenMetrics](https://github.com/OpenObservability/OpenMetrics/blob/master/specification/OpenMetrics.md) - -## Metric Types - -- Gauge -- Counter -- StateSet -- Info -- Histogram -- GaugeHistogram -- Summary -- Unknown - -Telemetry module in CSIT currently support only Gauge, Counter and Info. - -## Anatomy of CSIT telemetry implementation - -Existing implementation consists of several measurment building blocks: -the main measuring block running search algorithms (MLR, PLR, SOAK, MRR, ...), -the latency measuring block and the several telemetry blocks with or without -traffic running on a background. - -The main measuring block must not be interrupted by any read operation that can -impact data plane traffic processing during throughput search algorithm. Thus -operational reads are done before (pre-stat) and after (post-stat) that block. - -Some operational reads must be done while traffic is running and usually -consists of two reads (pre-run-stat, post-run-stat) with defined delay between -them. - -## MRR measurement - - traffic_start(r=mrr) traffic_stop |< measure >| - | | | (r=mrr) | - | pre_run_stat post_run_stat | pre_stat | | post_stat - | | | | | | | | - --o--------o---------------o---------o-------o--------+-------------------+------o------------> - t - - Legend: - - pre_run_stat - - vpp-clear-runtime - - post_run_stat - - vpp-show-runtime - - bash-perf-stat // if extended_debug == True - - pre_stat - - vpp-clear-stats - - vpp-enable-packettrace // if extended_debug == True - - vpp-enable-elog - - post_stat - - vpp-show-stats - - vpp-show-packettrace // if extended_debug == True - - vpp-show-elog - - - |< measure >| - | (r=mrr) | - | | - |< traffic_trial0 >|< traffic_trial1 >|< traffic_trialN >| - | (i=0,t=duration) | (i=1,t=duration) | (i=N,t=duration) | - | | | | - --o------------------------o------------------------o------------------------o---> - t - - -## MLR measurement - - |< measure >| traffic_start(r=pdr) traffic_stop traffic_start(r=ndr) traffic_stop |< [ latency ] >| - | (r=mlr) | | | | | | .9/.5/.1/.0 | - | | | pre_run_stat post_run_stat | | pre_run_stat post_run_stat | | | - | | | | | | | | | | | | - --+-------------------+----o--------o---------------o---------o--------------o--------o---------------o---------o------------[---------------------]---> - t - - Legend: - - pre_run_stat - - vpp-clear-runtime - - post_run_stat - - vpp-show-runtime - - bash-perf-stat // if extended_debug == True - - pre_stat - - vpp-clear-stats - - vpp-enable-packettrace // if extended_debug == True - - vpp-enable-elog - - post_stat - - vpp-show-stats - - vpp-show-packettrace // if extended_debug == True - - vpp-show-elog - - -## MRR measurement - - traffic_start(r=mrr) traffic_stop |< measure >| - | | | (r=mrr) | - | |< stat_runtime >| | stat_pre_trial | | stat_post_trial - | | | | | | | | - ----o---+--------------------------+---o-------------o------------+-------------------+-----o-------------> - t - - Legend: - - stat_runtime - - vpp-runtime - - stat_pre_trial - - vpp-clear-stats - - vpp-enable-packettrace // if extended_debug == True - - stat_post_trial - - vpp-show-stats - - vpp-show-packettrace // if extended_debug == True - - - |< measure >| - | (r=mrr) | - | | - |< traffic_trial0 >|< traffic_trial1 >|< traffic_trialN >| - | (i=0,t=duration) | (i=1,t=duration) | (i=N,t=duration) | - | | | | - --o------------------------o------------------------o------------------------o---> - t - - - |< stat_runtime >| - | | - |< program0 >|< program1 >|< programN >| - | (@=params) | (@=params) | (@=params) | - | | | | - --o------------------------o------------------------o------------------------o---> - t - - -## MLR measurement - - |< measure >| traffic_start(r=pdr) traffic_stop traffic_start(r=ndr) traffic_stop |< [ latency ] >| - | (r=mlr) | | | | | | .9/.5/.1/.0 | - | | | |< stat_runtime >| | | |< stat_runtime >| | | | - | | | | | | | | | | | | - --+-------------------+-----o---+--------------------------+---o--------------o---+--------------------------+---o-----------[---------------------]---> - t - - Legend: - - stat_runtime - - vpp-runtime - - stat_pre_trial - - vpp-clear-stats - - vpp-enable-packettrace // if extended_debug == True - - stat_post_trial - - vpp-show-stats - - vpp-show-packettrace // if extended_debug == True |