Hi,


The version of my lttng is: lttng (LTTng Trace Control) 2.10.7 - KeKriek.


The output of "lttng add-context --list" is as follows:
pid
procname
prio
nice
vpid
tid
pthread_id
vtid
ppid
vppid
hostname
ip
interruptible
preemptible
need_reschedule
migratable
perf:cpu:cpu-cycles
perf:cpu:cycles
perf:cpu:stalled-cycles-frontend
perf:cpu:idle-cycles-frontend
perf:cpu:stalled-cycles-backend
perf:cpu:idle-cycles-backend
perf:cpu:instructions
perf:cpu:cache-references
perf:cpu:cache-misses
perf:cpu:branch-instructions
perf:cpu:branches
perf:cpu:branch-misses
perf:cpu:bus-cycles
perf:cpu:L1-dcache-loads
perf:cpu:L1-dcache-load-misses
perf:cpu:L1-dcache-stores
perf:cpu:L1-dcache-store-misses
perf:cpu:L1-dcache-prefetches
perf:cpu:L1-dcache-prefetch-misses
perf:cpu:L1-icache-loads
perf:cpu:L1-icache-load-misses
perf:cpu:L1-icache-stores
perf:cpu:L1-icache-store-misses
perf:cpu:L1-icache-prefetches
perf:cpu:L1-icache-prefetch-misses
perf:cpu:LLC-loads
perf:cpu:LLC-load-misses
perf:cpu:LLC-stores
perf:cpu:LLC-store-misses
perf:cpu:LLC-prefetches
perf:cpu:LLC-prefetch-misses
perf:cpu:dTLB-loads
perf:cpu:dTLB-load-misses
perf:cpu:dTLB-stores
perf:cpu:dTLB-store-misses
perf:cpu:dTLB-prefetches
perf:cpu:dTLB-prefetch-misses
perf:cpu:iTLB-loads
perf:cpu:iTLB-load-misses
perf:cpu:branch-loads
perf:cpu:branch-load-misses
perf:cpu:cpu-clock
perf:cpu:task-clock
perf:cpu:page-fault
perf:cpu:faults
perf:cpu:major-faults
perf:cpu:minor-faults
perf:cpu:context-switches
perf:cpu:cs
perf:cpu:cpu-migrations
perf:cpu:migrations
perf:cpu:alignment-faults
perf:cpu:emulation-faults
perf:thread:cpu-cycles
perf:thread:cycles
perf:thread:stalled-cycles-frontend
perf:thread:idle-cycles-frontend
perf:thread:stalled-cycles-backend
perf:thread:idle-cycles-backend
perf:thread:instructions
perf:thread:cache-references
perf:thread:cache-misses
perf:thread:branch-instructions
perf:thread:branches
perf:thread:branch-misses
perf:thread:bus-cycles
perf:thread:L1-dcache-loads
perf:thread:L1-dcache-load-misses
perf:thread:L1-dcache-stores
perf:thread:L1-dcache-store-misses
perf:thread:L1-dcache-prefetches
perf:thread:L1-dcache-prefetch-misses
perf:thread:L1-icache-loads
perf:thread:L1-icache-load-misses
perf:thread:L1-icache-stores
perf:thread:L1-icache-store-misses
perf:thread:L1-icache-prefetches
perf:thread:L1-icache-prefetch-misses
perf:thread:LLC-loads
perf:thread:LLC-load-misses
perf:thread:LLC-stores
perf:thread:LLC-store-misses
perf:thread:LLC-prefetches
perf:thread:LLC-prefetch-misses
perf:thread:dTLB-loads
perf:thread:dTLB-load-misses
perf:thread:dTLB-stores
perf:thread:dTLB-store-misses
perf:thread:dTLB-prefetches
perf:thread:dTLB-prefetch-misses
perf:thread:iTLB-loads
perf:thread:iTLB-load-misses
perf:thread:branch-loads
perf:thread:branch-load-misses
perf:thread:cpu-clock
perf:thread:task-clock
perf:thread:page-fault
perf:thread:faults
perf:thread:major-faults
perf:thread:minor-faults
perf:thread:context-switches
perf:thread:cs
perf:thread:cpu-migrations
perf:thread:migrations
perf:thread:alignment-faults
perf:thread:emulation-faults


Thanks,
Serica


------------------ 原始邮件 ------------------
发件人:                                                                                                                        "Mathieu Desnoyers"                                                                                    <mathieu.desnoyers@efficios.com&gt;;
发送时间:&nbsp;2020年12月29日(星期二) 中午11:58
收件人:&nbsp;"Serica"<serica_law@qq.com&gt;;
抄送:&nbsp;"lttng-dev"<lttng-dev@lists.lttng.org&gt;;
主题:&nbsp;Re: [lttng-dev] Enamebling namespace contexts



----- On Dec 23, 2020, at 9:55 PM, lttng-dev <lttng-dev@lists.lttng.org&gt; wrote:

Hi,

ThI found that lttng is working on container awareness in this slides: https://archive.fosdem.org/2019/schedule/event/containers_lttng/attachments/slides/3419/export/events/attachments/containers_lttng/slides/3419/lttng_containers_fosdem19.pdf

On page #13, there is a command:&nbsp; lttng add-context -k -t procname -t pid -t vpid -t tid -t vtid -t pid_ns, where pid_ns and other namespace identifiers are very useful for tracing containers. However, it seems like that lttng of current version doesn't support adding context pid_ns(Error: Unknown context type pid_ns). Do you know how to enable these features?

What version of LTTng do you use (output of "lttng --version"), and what is the output of "lttng add-context --list" ?



Thanks,



Mathieu






Thanks a lot.
Btw, have a nice holiday!

Serica


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-- 

Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com