Comments (3)
stefreak
commented on May 14, 2024
This would bring great value for everyone who tries to write a prometheus exporter based on BCC, because Prometheus expects histogram data to have a linear distribution for calculation of quantiles (see also here: https://prometheus.io/docs/prometheus/latest/querying/functions/#histogram_quantile() The histogram_quantile() function interpolates quantile values by assuming a linear distribution within a bucket.)
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hharnisc
commented on May 14, 2024
Hey @brendangregg was looking for a good first issue to start contributing and came across this one. Is this at all related to https://github.com/iovisor/bcc/blob/master/src/python/bcc/table.py#L346
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brendangregg
commented on May 14, 2024
Looks like I did it in 39cece4 (so that I could add runqlen.py) but I forgot to close this ticket. Closing now!
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Related Issues (20)
- tcpretrans causes error on latest Ubuntu HOT 1
- Kernel stack traces HOT 13
- biotop reports all operations as reads HOT 6
- Error: unknown argument: '-fcf-protection' HOT 2
- tool/sslsniff.py
- when I use bpf_attach_tracepoint to attach a uprobe, it cames out error as "perf_event_open(/sys/kernel/tracing/events/uprobes/dmabufAlloc/id): Interrupted system call" HOT 1
- tools/slabratetop: can't find linux/slub_def.h header
- tcpretrans: use of undeclared identifier 'BPF_CGROUP_UNIX_*' HOT 2
- ttysnoop fails on newer kernel HOT 3
- failed to create kprobe 'mutex_lock' using klockstat in kernel 6.7 HOT 1
- When i launch 'sudo opensnoop-bpfcc' the shell is launched for works but unfortunately the program happen three warnings
- Miscalulation of offset with consecutive bitfields HOT 7
- Fail run disksnoop.py example HOT 3
- bcc/libbpf-tools/fsdist.bpf.c:38:12: error: unsupported signed division, please convert to unsigned div/mod.
- /virtual/main.c:18:20: error: incompatible pointer to integer conversion passing 'void *' to parameter of type 'u64' (aka 'unsigned long long')
- build fails with python 3.12.1 HOT 4
- 0.29.1 + master (706ec4fe): compile time warnings HOT 2
- wqlat.py fails for 6.7 kernel with -w workqueue selection HOT 2
- error: unknown type name ‘GElf_Versym’; did you mean ‘GElf_Verdef’? HOT 3
- why i use memleak, trace kmalloc tracepoint, run 12hours, but only counted 64 stackid....
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