go-ethereum

Commit Graph

Author	SHA1	Message	Date
Exca-DK	b4dcd1a391	metrics: make gauge_float64 and counter_float64 lock free (#27025 ) Makes the float-gauges lock-free name old time/op new time/op delta CounterFloat64Parallel-8 1.45µs ±10% 0.85µs ± 6% -41.65% (p=0.008 n=5+5) --------- Co-authored-by: Exca-DK <dev@DESKTOP-RI45P4J.localdomain> Co-authored-by: Martin Holst Swende <martin@swende.se>	1 year ago
turboboost55	7dc100714d	metrics: add cpu counters (#26796 ) This PR adds counter metrics for the CPU system and the Geth process. Currently the only metrics available for these items are gauges. Gauges are fine when the consumer scrapes metrics data at the same interval as Geth produces new values (every 3 seconds), but it is likely that most consumers will not scrape that often. Intervals of 10, 15, or maybe even 30 seconds are probably more common. So the problem is, how does the consumer estimate what the CPU was doing in between scrapes. With a counter, it's easy ... you just subtract two successive values and divide by the time to get a nice, accurate average. But with a gauge, you can't do that. A gauge reading is an instantaneous picture of what was happening at that moment, but it gives you no idea about what was going on between scrapes. Taking an average of values is meaningless.	2 years ago

Author

SHA1

Message

Date

Exca-DK

b4dcd1a391

metrics: make gauge_float64 and counter_float64 lock free (#27025 )

Makes the float-gauges lock-free

name                      old time/op  new time/op  delta
CounterFloat64Parallel-8  1.45µs ±10%  0.85µs ± 6%  -41.65%  (p=0.008 n=5+5)

---------

Co-authored-by: Exca-DK <dev@DESKTOP-RI45P4J.localdomain>
Co-authored-by: Martin Holst Swende <martin@swende.se>

1 year ago

turboboost55

7dc100714d

metrics: add cpu counters (#26796 )

This PR adds counter metrics for the CPU system and the Geth process.
Currently the only metrics available for these items are gauges. Gauges are
fine when the consumer scrapes metrics data at the same interval as Geth
produces new values (every 3 seconds), but it is likely that most consumers
will not scrape that often. Intervals of 10, 15, or maybe even 30 seconds
are probably more common.

So the problem is, how does the consumer estimate what the CPU was doing in
between scrapes. With a counter, it's easy ... you just subtract two
successive values and divide by the time to get a nice, accurate average.
But with a gauge, you can't do that. A gauge reading is an instantaneous
picture of what was happening at that moment, but it gives you no idea
about what was going on between scrapes. Taking an average of values is
meaningless.

2 years ago

2 Commits (80b7bfe70de59356a547c5a5e1c64f0a69e3873e)