Alpha Status
metrics collection but easy. Tired of working with environments with no metrics collection setup, limited install rights, in hostile environments and especially at the frequency, duration, and level of aggregation you want? Now you can use StatCapn the easy to install metrics capture utility written in go. Originally conceived to capture usage stats out of a K8s pod with no monitoring or metrics collection setup
Download a binary here https://github.com/rsvihladremio/statcapn/releases unzip it and just run it (works on Windows, Mac and Linux)
by default it outputs some metrics to standard out
./bin/statcapn
Timestamp usr %% sys %% iowait %% other %% idl %% Queue Latency (ms) Read (MB/s) Write (MB/s) Free Mem (GB)
2023-07-03T16:39:01+02:00 5.01% 6.26% 0.00% 0.00% 88.74% 0.00 0.00 0.00 0.00 0.96
2023-07-03T16:39:02+02:00 4.62% 4.87% 0.00% 0.00% 90.51% 0.00 0.00 0.00 0.00 1.05
2023-07-03T16:39:03+02:00 5.24% 5.62% 0.00% 0.00% 89.14% 0.00 0.00 0.00 0.00 1.03
2023-07-03T16:39:04+02:00 6.63% 6.51% 0.00% 0.00% 86.86% 0.00 0.00 0.00 0.00 1.05
2023-07-03T16:39:05+02:00 8.91% 10.04% 0.00% 0.00% 81.05% 0.00 0.00 0.00 0.00 1.02
2023-07-03T16:39:06+02:00 5.27% 5.90% 0.00% 0.00% 88.83% 0.00 0.00 0.00 0.00 1.02
2023-07-03T16:39:07+02:00 8.49% 9.24% 0.00% 0.00% 82.27% 0.00 0.00 0.00 0.00 0.99
2023-07-03T16:39:08+02:00 7.64% 8.52% 0.00% 0.00% 83.83% 0.00 0.00 0.00 0.00 0.95
2023-07-03T16:39:09+02:00 8.10% 4.99% 0.00% 0.00% 86.91% 0.00 0.00 0.00 0.00 0.95
2023-07-03T16:39:10+02:00 8.55% 4.40% 0.00% 0.00% 87.04% 0.00 0.00 0.00 0.00 0.96
2023-07-03T16:39:11+02:00 6.60% 4.86% 0.00% 0.00% 88.54% 0.00 0.00 0.00 0.00 0.98
2023-07-03T16:39:12+02:00 4.64% 5.64% 0.00% 0.00% 89.72% 0.00 0.00 0.00 0.00 1.03
control+c when you have seen enough
A simple enough command just give it a file that ends in .json. In the following example I have given 10 seconds for a duration (however one can also just control+c when done, the content is not buffered so the file updates as it collect measurements.
./bin/statcapn -d 10 ~/Downloads/metrics.json
{"collectionTimestamp":"2023-07-03T16:41:32.556974+02:00","userCPUPercent":5.53,"systmeCPUPercent":8.29,"idleCPUPercent":86.18,"niceCPUPercent":0,"ioWaitCPUPercent":0,"irqCPUPercent":0,"softIRQCPUPercent":0,"stealCPUPercent":0,"guestCPUPercent":0,"guestCPUNicePercent":0,"queueDepth":0,"diskLatency":0,"readBytes":0,"writeBytes":0,"freeRAMMB":973,"cachedRAMMB":0}
{"collectionTimestamp":"2023-07-03T16:41:33.567511+02:00","userCPUPercent":6.72,"systmeCPUPercent":7.96,"idleCPUPercent":85.32,"niceCPUPercent":0,"ioWaitCPUPercent":0,"irqCPUPercent":0,"softIRQCPUPercent":0,"stealCPUPercent":0,"guestCPUPercent":0,"guestCPUNicePercent":0,"queueDepth":0,"diskLatency":0,"readBytes":0,"writeBytes":0,"freeRAMMB":946,"cachedRAMMB":0}
{"collectionTimestamp":"2023-07-03T16:41:34.571189+02:00","userCPUPercent":8.89,"systmeCPUPercent":8.14,"idleCPUPercent":82.98,"niceCPUPercent":0,"ioWaitCPUPercent":0,"irqCPUPercent":0,"softIRQCPUPercent":0,"stealCPUPercent":0,"guestCPUPercent":0,"guestCPUNicePercent":0,"queueDepth":0,"diskLatency":0,"readBytes":0,"writeBytes":0,"freeRAMMB":963,"cachedRAMMB":0}
{"collectionTimestamp":"2023-07-03T16:41:35.573744+02:00","userCPUPercent":13,"systmeCPUPercent":19.12,"idleCPUPercent":67.88,"niceCPUPercent":0,"ioWaitCPUPercent":0,"irqCPUPercent":0,"softIRQCPUPercent":0,"stealCPUPercent":0,"guestCPUPercent":0,"guestCPUNicePercent":0,"queueDepth":0,"diskLatency":0,"readBytes":0,"writeBytes":0,"freeRAMMB":875,"cachedRAMMB":0}
{"collectionTimestamp":"2023-07-03T16:41:36.575854+02:00","userCPUPercent":9.49,"systmeCPUPercent":8.61,"idleCPUPercent":81.9,"niceCPUPercent":0,"ioWaitCPUPercent":0,"irqCPUPercent":0,"softIRQCPUPercent":0,"stealCPUPercent":0,"guestCPUPercent":0,"guestCPUNicePercent":0,"queueDepth":0,"diskLatency":0,"readBytes":0,"writeBytes":0,"freeRAMMB":936,"cachedRAMMB":0}
{"collectionTimestamp":"2023-07-03T16:41:37.578162+02:00","userCPUPercent":6.88,"systmeCPUPercent":8.76,"idleCPUPercent":84.36,"niceCPUPercent":0,"ioWaitCPUPercent":0,"irqCPUPercent":0,"softIRQCPUPercent":0,"stealCPUPercent":0,"guestCPUPercent":0,"guestCPUNicePercent":0,"queueDepth":0,"diskLatency":0,"readBytes":0,"writeBytes":0,"freeRAMMB":986,"cachedRAMMB":0}
{"collectionTimestamp":"2023-07-03T16:41:38.580396+02:00","userCPUPercent":5.24,"systmeCPUPercent":4.49,"idleCPUPercent":90.26,"niceCPUPercent":0,"ioWaitCPUPercent":0,"irqCPUPercent":0,"softIRQCPUPercent":0,"stealCPUPercent":0,"guestCPUPercent":0,"guestCPUNicePercent":0,"queueDepth":0,"diskLatency":0,"readBytes":0,"writeBytes":0,"freeRAMMB":1012,"cachedRAMMB":0}
{"collectionTimestamp":"2023-07-03T16:41:39.583214+02:00","userCPUPercent":6.63,"systmeCPUPercent":5.51,"idleCPUPercent":87.86,"niceCPUPercent":0,"ioWaitCPUPercent":0,"irqCPUPercent":0,"softIRQCPUPercent":0,"stealCPUPercent":0,"guestCPUPercent":0,"guestCPUNicePercent":0,"queueDepth":0,"diskLatency":0,"readBytes":0,"writeBytes":0,"freeRAMMB":1029,"cachedRAMMB":0}
{"collectionTimestamp":"2023-07-03T16:41:40.584502+02:00","userCPUPercent":8.52,"systmeCPUPercent":5.14,"idleCPUPercent":86.34,"niceCPUPercent":0,"ioWaitCPUPercent":0,"irqCPUPercent":0,"softIRQCPUPercent":0,"stealCPUPercent":0,"guestCPUPercent":0,"guestCPUNicePercent":0,"queueDepth":0,"diskLatency":0,"readBytes":0,"writeBytes":0,"freeRAMMB":1038,"cachedRAMMB":0}
{"collectionTimestamp":"2023-07-03T16:41:41.585611+02:00","userCPUPercent":12.42,"systmeCPUPercent":4.89,"idleCPUPercent":82.69,"niceCPUPercent":0,"ioWaitCPUPercent":0,"irqCPUPercent":0,"softIRQCPUPercent":0,"stealCPUPercent":0,"guestCPUPercent":0,"guestCPUNicePercent":0,"queueDepth":0,"diskLatency":0,"readBytes":0,"writeBytes":0,"freeRAMMB":1069,"cachedRAMMB":0}./bin/statcapn -h
statcapn v0.1.1-ce0e9c4
standard usage:
statcapn -i <interval> -d <duration_seconds> metrics.txt
For json output:
statcapn -i <interval> -d <duration_seconds> metrics.json
flags:
-d int
number of seconds for duration of all collection (default 9223372036854775807)
-i int
number of seconds between execution of collection (default 1)
Apache License, Version 2.0