Re: [lttng-dev] [lttng-relayd] is there existing cases for relayd to stream over Android usb based adb?

On 2024-06-04 11:25, Wu, Yannan wrote: The device is a rooted android device *On the device:* lttng-sessiond -d --no-kernel lttng create my-live-session --live lttng enable-event -u lttng start *On the host:* adb reverse tcp:5343 tcp:5343 The adb reverse will fail for "/adb.exe: error:

Re: [lttng-dev] [lttng-relayd] is there existing cases for relayd to stream over Android usb based adb?

1:09:40 PM To: Wu, Yannan; Kienan Stewart; lttng-dev@lists.lttng.org Subject: RE: [EXTERNAL] [lttng-dev] [lttng-relayd] is there existing cases for relayd to stream over Android usb based adb? CAUTION: This email originated from outside of the organization. Do not click links or open attachments

Re: [lttng-dev] [lttng-relayd] is there existing cases for relayd to stream over Android usb based adb?

m:* Kienan Stewart *Sent:* Friday, May 31, 2024 3:12:16 AM *To:* Wu, Yannan; lttng-dev@lists.lttng.org *Subject:* RE: [EXTERNAL] [lttng-dev] [lttng-relayd] is there existing cases for relayd to stream over Android usb based adb? CAUTION: This email originated from outside of the organization. Do not c

Re: [lttng-dev] [lttng-relayd] is there existing cases for relayd to stream over Android usb based adb?

31, 2024 3:12:16 AM To: Wu, Yannan; lttng-dev@lists.lttng.org Subject: RE: [EXTERNAL] [lttng-dev] [lttng-relayd] is there existing cases for relayd to stream over Android usb based adb? CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless

Re: [lttng-dev] [lttng-relayd] is there existing cases for relayd to stream over Android usb based adb?

but lttng-relayd is not started. By manually start lttng-relayd it will also failed for unable binding to socket. Amanda From: Kienan Stewart Sent: Friday, May 31, 2024 3:12:16 AM To: Wu, Yannan; lttng-dev@lists.lttng.org Subject: RE: [EXTERNAL] [lttng-dev] [lt

Re: [lttng-dev] [lttng-relayd] is there existing cases for relayd to stream over Android usb based adb?

? Amanda ___ lttng-dev mailing list lttng-dev@lists.lttng.org https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev ___ lttng-dev mailing list lttng-dev@lists.lttng.org https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev

[lttng-dev] [lttng-relayd] is there existing cases for relayd to stream over Android usb based adb?

Hihi, there, I am currently working on enabling lttng live mode over android usb adb. Here is the situation, during debugging some network related issues, we dont want the trace data to be streamed via network to cause extra load to the system being profiled. Then we select to connect

Re: [lttng-dev] LTTng UST Benchmarks

mailing list lttng-dev@lists.lttng.org https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev ___ lttng-dev mailing list lttng-dev@lists.lttng.org https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev

Re: [lttng-dev] LTTng UST Benchmarks

Hi Aditya, On 4/24/24 11:25 AM, Aditya Kurdunkar via lttng-dev wrote: Hello everyone, I was working on a use case where I am working on enabling LTTng on an embedded ARM device running the OpenBMC linux distribution. I have enabled the lttng yocto recipe and I am able to trace my code. The

[lttng-dev] LTTng UST Benchmarks

Hello everyone, I was working on a use case where I am working on enabling LTTng on an embedded ARM device running the OpenBMC linux distribution. I have enabled the lttng yocto recipe and I am able to trace my code. The one thing I am concerned about is the performance overhead. Although the

Re: [lttng-dev] Lttng: display active threads in multiple cores.

st >      > lttng-dev@lists.lttng.org <mailto:lttng-dev@lists.lttng.org> <mailto:lttng-dev@lists.lttng.org <mailto:lttng-dev@lists.lttng.org>> >      > https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev <https://lists.lttng.org/cgi-bin/ma

Re: [lttng-dev] Lttng: display active threads in multiple cores.

> > > > Is it possible ? > > > > > > Thank you, > > > Zvika > > > ___ > > > lttng-dev mailing list > > > lttng-dev@lists.lttng.org <mailto:lttng

Re: [lttng-dev] lttng-modules(13.9) : insmod order

gt; > Zvika > > > > ___________ > > lttng-dev mailing list > > lttng-dev@lists.lttng.org > > https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev > ___ lttng-dev mailing list lttng-dev@lists.lttng.org https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev

Re: [lttng-dev] Lttng: display active threads in multiple cores.

> Is it possible ? > > Thank you, > Zvika > ___ > lttng-dev mailing list > lttng-dev@lists.lttng.org <mailto:lttng-dev@lists.lttng.org> > https://lists.lttng.org/cgi-bi

Re: [lttng-dev] lttng-modules(13.9) : insmod order

space events. Thank you, Zvika ___ lttng-dev mailing list lttng-dev@lists.lttng.org https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev ___ lttng-dev mailing list lttng-dev@lists.lttng.org https

[lttng-dev] lttng-modules(13.9) : insmod order

Hello, For some reason, I failed to integrate v13.9 into buildroot 2023.02.2 But I compiled all modules with the my kernel source: 5.4.249 Can you please tell what is the right order of *insmod *for the kernel modules ? All I need is to record IRQ events and user space events. Thank you, Zvika

Re: [lttng-dev] Lttng: display active threads in multiple cores.

Hi Christopher, Thank you very much for your reply. Can you please explain what do you mean by ftrace-enabled kernel ? Best regards, Zvika On Wed, Mar 27, 2024 at 7:32 PM Christopher Harvey via lttng-dev < lttng-dev@lists.lttng.org> wrote: > you can use an ftrace-enabled kernel w

Re: [lttng-dev] Lttng: display active threads in multiple cores.

le ? > > Thank you, > Zvika > ___ > lttng-dev mailing list > lttng-dev@lists.lttng.org > https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev ___ lttng-dev mailing list lttng-dev@lists.l

[lttng-dev] Lttng: display active threads in multiple cores.

Hello, I have an application with 4 threads. I'm required to display on the graph when thread starts working till it blocks for the next semaphore. But without using the lttng userspace library. Is it possible ? Thank you, Zvika ___ lttng-dev mailing

Re: [lttng-dev] LTTNG Continuously Crashing on Debian-12

Hi Lakshmi, I'd like to encourage once again to review the bug reporting guidelines at https://lttng.org/community/ and include all the necessary information including steps to reproduce the issue. Thank you. On 3/12/24 1:51 PM, Lakshmi Deverkonda wrote: Hi, We see that python3 based lttng

[lttng-dev] LTTNG Continuously Crashing on Debian-12

Hi, We see that python3 based lttng is continuously crashing on debian-12. Kernel Version is 6.1.0. Is there some special handling that has to be taken care for debian-12? Following is the core decode. Program terminated with signal SIGABRT, Aborted. #0 0x7fb95dac9e2c in ?? () from

Re: [lttng-dev] LTTng sessiond daemon Assertion `buf' failed and killed

Hi Yonghong, thanks for the extra info. As you say without the symbol resolution the backtrace isn't super useful. Based on the build-id in the file info for lttng-sessiond, it looks like you might be using the lttng/stable-2.13 ppa. In that case, you could try using debuginfod with gdb to

Re: [lttng-dev] LTTng sessiond daemon Assertion `buf' failed and killed

Hi Yonghong, thanks for the additional information. Would you be willing and able to share a coredump and/or backtrace of the crash? I was still unable to reproduce the issue using the commands you provided, but am interested in understanding what is happening here. Are there any

Re: [lttng-dev] LTTng sessiond daemon Assertion `buf' failed and killed

_as worker exiting (ret = 0) (in run_as_create_worker_no_lock() at runas.c:1526) ___ lttng-dev mailing list lttng-dev@lists.lttng.org https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev ___ lttng-dev ma

[lttng-dev] LTTng sessiond daemon Assertion `buf' failed and killed

I am not sure whether this is my setting problem or a bug with a more recent kernel. lttng-sessiond was killed when I tried to "enable event" after a session was created. See below part of the verbose output of the sessiond. It is observed on Ubuntu 22.04, kernel 6.5.0-14-generic

Re: [lttng-dev] lttng-analysis error

information by persons or entities other than the intended recipient is prohibited. If you received this in error , please contact the sender and delete the material from any computer. ___ lttng-dev mailing list lttng-dev@lists.lttng.or

Re: [lttng-dev] lttng list -k is missing tracepoints

try (loglevel: TRACE_EMERG (0)) (type: tracepoint) x86_irq_vectors_thermal_apic_exit (loglevel: TRACE_EMERG (0)) (type: tracepoint) ___ lttng-dev mailing list lttng-dev@lists.lttng.org https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-

[lttng-dev] lttng list -k is missing tracepoints

Hi, I'm trying to use LTTNG to trace io_uring tracepoints, of which there are many in the 6.5.4 kernel I am running: # grep io_uring /sys/kernel/tracing/available_events syscalls:sys_exit_io_uring_register syscalls:sys_enter_io_uring_register syscalls:sys_exit_io_uring_setup

[lttng-dev] lttng list -k is missing tracepoints

Hi, I'm trying to use LTTNG to trace io_uring tracepoints, of which there are many in the 6.5.4 kernel I am running: # grep io_uring /sys/kernel/tracing/available_events syscalls:sys_exit_io_uring_register syscalls:sys_enter_io_uring_register syscalls:sys_exit_io_uring_setup

Re: [lttng-dev] LTTng enable-event performance issue during active session

ing to be a better strategy. Do you have cases where you need to activate many of events but which couldn't be covered by using glob patterns and/or exclusions? thanks, kienan Many thanks, Zach _____

Re: [lttng-dev] LTTng enable-event performance issue during active session

th "--exclude" is going to be a better strategy. Do you have cases where you need to activate many of events but which couldn't be covered by using glob patterns and/or exclusions? thanks, kienan Many thanks, Zach ___ l

[lttng-dev] LTTng enable-event performance issue during active session

Hi, I am observing a performance issue with regards to enabling events while a session is active and was wondering if this is expected. LTTng versions: * lttng-tools: 2.13.9 * lttng-ust: 2.13.6 Steps to reproduce: 1. Ensure many userspace tracepoints are available in `lttng list

Re: [lttng-dev] LTTNG LIB UST Crash

Trace file size: 1073741824 bytes ... ``` thanks, kienan Regards, Lakshmi *From:* Kienan Stewart *Sent:* 06 September 2023 21:01 *To:* lttng-dev@lists.lttng.org ; Lakshmi Deverkonda *Subject:* Re: [lttng-dev] L

Re: [lttng-dev] LTTNG LIB UST Crash

quot; and increasing the trace_file_count. How can I do it ? This is one of the necessary requirement for our application. Can you please guide on this ? Regards, Lakshmi From: Kienan Stewart Sent: 06 September 2023 21:01 To: lttng-dev@lists.lttng.org ; Lakshmi D

Re: [lttng-dev] LTTNG LIB UST Crash

*From:* Kienan Stewart *Sent:* 05 September 2023 21:20 *To:* Lakshmi Deverkonda *Subject:* Re: [lttng-dev] LTTNG LIB UST Crash External email: Use caution opening links or attachments Hi Lakshmi, could you please provide us with the system details

Re: [lttng-dev] LTTNG LIB UST Crash

September 2023 21:20 To: Lakshmi Deverkonda Subject: Re: [lttng-dev] LTTNG LIB UST Crash External email: Use caution opening links or attachments Hi Lakshmi, could you please provide us with the system details and version information for LTTng tools and UST? The bug reporting guidelines which

Re: [lttng-dev] LTTNG LIB UST Crash

iling list lttng-dev@lists.lttng.org https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev ___ lttng-dev mailing list lttng-dev@lists.lttng.org https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev

[lttng-dev] LTTNG LIB UST Crash

Hi All, I am observing lttng crash while trying to interface LTTNG for one of my python3 application. I just tried the following things, Added "import lttngust " in the code. # lttng create clagd Session clagd created. Traces will be written in /root/lttng-traces/clagd-20230905-062210 # lttng

[lttng-dev] LTTng-UST and SystemTap/DTrace

Hi, we are in process of adding USDT probes to the BIND 9 probes and the obvious question is whether it’s possible to use the probes with the LTTng tools. Alternatively, if there’s an easy way how to use one or another. The USDT probes are provided by SystemTap on Linux and by DTrace on BSDs

Re: [lttng-dev] LTTng bugs repository - pending administrator approval

On 2023-02-15 09:56, Rus, Sani via lttng-dev wrote: Hi, a couple of days ago I registered at LTTng bugs repository - https://bugs.lttng.org/ , but I still can not sign in. At the login I get the "Your account was created and is now pending administrator approval."

[lttng-dev] LTTng bugs repository - pending administrator approval

Hi, a couple of days ago I registered at LTTng bugs repository - https://bugs.lttng.org/, but I still can not sign in. At the login I get the "Your account was created and is now pending administrator approval." message. Do you know when the registration request will be approved? Should I

Re: [lttng-dev] LTTng UST structure support

kages Did I miss them somewhere ? Should I have plugged in at another level in babeltrace2 ? Best regards, Charles - Mail original - De: chafray...@free.fr À: "Mathieu Desnoyers" Cc: lttng-dev@lists.lttng.org Envoyé: Lundi 16 Janvier 2023 10:38:28 Objet: Re: [ltt

Re: [lttng-dev] LTTng UST structure support

Galarneau EfficiOS Inc. https://www.efficios.com From: lttng-dev on behalf of chafraysse--- via lttng-dev Sent: February 9, 2023 04:15 To: lttng-dev@lists.lttng.org Subject: Re: [lttng-dev] LTTng UST structure support Hi Jérémie, Thx for your reply, I'm doing a mocku

Re: [lttng-dev] LTTng UST structure support

hing includes in there or in the other babeltrace 2 packages Did I miss them somewhere ? Should I have plugged in at another level in babeltrace2 ? Best regards, Charles - Mail original - De: chafray...@free.fr À: "Mathieu Desnoyers" Cc: lttng-dev@lists.lttng.org Envoyé: Lun

Re: [lttng-dev] lttng-consumerd crash on aarch64 due to x86 arch specific optimization

2 februari 2023 17:26 Till: Beckius, Mikael ; lttng- d...@lists.lttng.org Ämne: Re: [lttng-dev] lttng-consumerd crash on aarch64 due to x86 arch specific optimization CAUTION: This email comes from a non Wind River email account! Do not click links or open attachments unless you recognize

Re: [lttng-dev] lttng-consumerd crash on aarch64 due to x86 arch specific optimization

noyers > Skickat: den 2 februari 2023 17:26 > Till: Beckius, Mikael ; lttng- > d...@lists.lttng.org > Ämne: Re: [lttng-dev] lttng-consumerd crash on aarch64 due to x86 arch > specific optimization > > CAUTION: This email comes from a non Wind River email account! > Do not c

Re: [lttng-dev] lttng-consumerd crash on aarch64 due to x86 arch specific optimization

Hello Mathieu! Sorry for the late reply. I was away for a few days. I will have a look at your updated approach and get back to you on your other replies if still relevant, but in short: - With __ARM_FEATURE_UNALIGNED defined 32-bit arm appears to support 2 and 4 bytes unaligned access -

Re: [lttng-dev] LTTng UST structure support

lttng-dev Sent: February 2, 2023 11:06 To: Mathieu Desnoyers Cc: lttng-dev@lists.lttng.org Subject: Re: [lttng-dev] LTTng UST structure support Hi, So I wrote a draft of Rust lib above ctf-writer, using the apis as demonstrated in the ctf-writer test For deployment I wanted to use "libbabeltrac

Re: [lttng-dev] lttng-consumerd crash on aarch64 due to x86 arch specific optimization

Hi Mikael, I just tried another approach to fix this issue, see: https://review.lttng.org/c/lttng-ust/+/9413 Fix: use unaligned pointer accesses for lttng_inline_memcpy It is less intrusive than other approaches, and does not change the generated code on the most relevant architectures.

Re: [lttng-dev] LTTng UST structure support

e other babeltrace 2 packages Did I miss them somewhere ? Should I have plugged in at another level in babeltrace2 ? Best regards, Charles - Mail original - De: chafray...@free.fr À: "Mathieu Desnoyers" Cc: lttng-dev@lists.lttng.org Envoyé: Lundi 16 Janvier 2023 10:38:28 Objet: Re: [

Re: [lttng-dev] lttng-consumerd crash on aarch64 due to x86 arch specific optimization

On 2023-01-31 11:18, Mathieu Desnoyers wrote: On 2023-01-31 11:08, Mathieu Desnoyers wrote: On 2023-01-30 01:50, Beckius, Mikael via lttng-dev wrote: Hello Matthieu! I have looked at this in place of Anders and as far as I can tell this is not an arm64 issue but an arm issue. And even on arm

Re: [lttng-dev] lttng-consumerd crash on aarch64 due to x86 arch specific optimization

On 2023-01-31 11:08, Mathieu Desnoyers wrote: On 2023-01-30 01:50, Beckius, Mikael via lttng-dev wrote: Hello Matthieu! I have looked at this in place of Anders and as far as I can tell this is not an arm64 issue but an arm issue. And even on arm __ARM_FEATURE_UNALIGNED is 1 so it seems the

Re: [lttng-dev] lttng-consumerd crash on aarch64 due to x86 arch specific optimization

On 2023-01-30 01:50, Beckius, Mikael via lttng-dev wrote: Hello Matthieu! I have looked at this in place of Anders and as far as I can tell this is not an arm64 issue but an arm issue. And even on arm __ARM_FEATURE_UNALIGNED is 1 so it seems the problem only occurs if size equals 8. So for

Re: [lttng-dev] lttng-consumerd crash on aarch64 due to x86 arch specific optimization

Hello Matthieu! I have looked at this in place of Anders and as far as I can tell this is not an arm64 issue but an arm issue. And even on arm __ARM_FEATURE_UNALIGNED is 1 so it seems the problem only occurs if size equals 8. In addition I did some performance testing of lttng_inline_memcpy by

Re: [lttng-dev] lttng-consumerd crash on aarch64 due to x86 arch specific optimization

Hi Matthieu, I've retired and no longer have access to any arch64 target to test it on. Regards Anders Den ons 25 jan. 2023 13:25Mathieu Desnoyers skrev: > Hi Anders, > > Sorry for the long delay on this one, can you have a look at the following > fix ? > >

Re: [lttng-dev] lttng-consumerd crash on aarch64 due to x86 arch specific optimization

On 2023-01-26 14:32, Anders Wallin wrote: Hi Matthieu, I've retired and no longer have access to any arch64  target to test it on. Thanks for your reply Anders, I've talked to Henrik and Pär today and they are already testing it out. Enjoy your retirement :) Best regards, Mathieu --

Re: [lttng-dev] lttng-consumerd crash on aarch64 due to x86 arch specific optimization

Hi Anders, Sorry for the long delay on this one, can you have a look at the following fix ? https://review.lttng.org/c/lttng-ust/+/9319 Fix: aarch64: do not perform unaligned stores If it passes your testing, I'll merge this into lttng-ust. Thanks, Mathieu On 2017-12-28 09:13, Anders

Re: [lttng-dev] LTTng UST structure support

.lttng.org Envoyé: Jeudi 12 Janvier 2023 21:10:57 Objet: Re: [lttng-dev] LTTng UST structure support On 2023-01-09 09:02, chafraysse--- via lttng-dev wrote: > Hi, > > I'm looking for a CTF writer to serialize instrumentations in an > embedded Linux/Rust framework > LTTng UST looked

Re: [lttng-dev] LTTng UST structure support

On 2023-01-09 09:02, chafraysse--- via lttng-dev wrote: Hi, I'm looking for a CTF writer to serialize instrumentations in an embedded Linux/Rust framework LTTng UST looked like a very strong option, but I want to serialize structures as CTF compound type structures and I did not see those

[lttng-dev] LTTng UST structure support

Hi, I'm looking for a CTF writer to serialize instrumentations in an embedded Linux/Rust framework LTTng UST looked like a very strong option, but I want to serialize structures as CTF compound type structures and I did not see those supported in the doc or api I'd love to have confirmation

Re: [lttng-dev] LTTng and containers.

On 2022-10-10 17:12, Maksim Khmelevskiy via lttng-dev wrote: Hi, I would like to ask regarding the hot topic - container tracing. I've seen a youtube video , have read a message

Re: [lttng-dev] LTTng and containers.

ie Galarneau EfficiOS Inc. https://www.efficios.com From: lttng-dev on behalf of Maksim Khmelevskiy via lttng-dev Sent: October 10, 2022 12:12 To: lttng-dev@lists.lttng.org Subject: [lttng-dev] LTTng and containers. Hi, I would like to ask regarding the hot topi

Re: [lttng-dev] lttng-ust on arm64 getting bogged down by the getcpu syscall (taking more than 600ns per call)

-- Jérémie Galarneau EfficiOS Inc. https://www.efficios.com From: lttng-dev on behalf of Akhil Veeraghanta via lttng-dev Sent: October 11, 2022 16:57 To: lttng-dev@lists.lttng.org Subject: [lttng-dev] lttng-ust on arm64 getting bogged down by the getcpu syscall (taking

[lttng-dev] lttng-ust on arm64 getting bogged down by the getcpu syscall (taking more than 600ns per call)

Hello! I've run into an issue with getcpu not having a vsdo implementation and taking anywhere from 600ns to 80us (avg 1 us) when using lttng-ust tracepoints. I am on lttng v2.13 and kernel version 4.9.253-l4t, running on a jetson (arm64). I was digging around and found that rseq might be the

[lttng-dev] LTTng and containers.

Hi, I would like to ask regarding the hot topic - container tracing. I've seen a youtube video , have read a message from LTTng mailing list and tried to google more about this topic

Re: [lttng-dev] LTTng on RHEL 7.9 with real time kernel patch

- On Jul 15, 2022, at 9:19 AM, Pennese Marco via lttng-dev wrote: > Hi, > I’m trying to use LTTng on a Red Hat Enterprise Linux 7.9 (with the real time > kernel patch). > I installed LTTng on the machine following the EfficiOS guide linked by lttng > official website. > In my

[lttng-dev] LTTng on RHEL 7.9 with real time kernel patch

Hi, I’m trying to use LTTng on a Red Hat Enterprise Linux 7.9 (with the real time kernel patch). I installed LTTng on the machine following the EfficiOS guide linked by lttng official website. In my configuration, lttng manages to record user space events. I’d like to record also kernel space

Re: [lttng-dev] [lttng-tools] Removal of root_regression tests

ttng-dev" > > Sent: Monday, 13 June, 2022 07:49:39 > > Subject: [lttng-dev] [lttng-tools] Removal of root_regression tests > > > Hello, > > > > Since version v2.12.9 of lttng-tools the root_regression file has been > > emptied > > to make the test

Re: [lttng-dev] [lttng-tools] Removal of root_regression tests

Hi Marcel, - Original Message - > From: "Marcel Hamer via lttng-dev" > To: "lttng-dev" > Sent: Monday, 13 June, 2022 07:49:39 > Subject: [lttng-dev] [lttng-tools] Removal of root_regression tests > Hello, > > Since version v2.12.9 of lttn

[lttng-dev] [lttng-tools] Removal of root_regression tests

Hello, Since version v2.12.9 of lttng-tools the root_regression file has been emptied to make the tests part of the 'make check' sequence instead. We were always actively using that test file as part of our regression testing. In our case we are working in a cross-compilation environment,

Re: [lttng-dev] lttng-consumerd can NOT get notification to consume ring buffer data

Hi, Can you try: - Reproducing with a more recent LTTng-UST/LTTng-Tools ? (e.g. 2.13). LTTng 2.7 is not supported anymore. - Try to reproduce with "per-pid" UST buffers rather than "per-uid", - Try to reproduce without the "tracefile rotation" mode (without --tracefile-count and

[lttng-dev] lttng-consumerd can NOT get notification to consume ring buffer data

Hi, Lttng-dev: I found a strange problem related to lttng-consumed and ctf files recently. The ctf files belongs to some CPUs have been stopped rotating but other ctf files(belong to other CPUs) keeped working as usual. I am very sure all CPUs were producing spans all the time. #date; ls

Re: [lttng-dev] Lttng live protocol

Thank you for the information! On Wed, 15 Sept 2021 at 17:00, Mathieu Desnoyers < mathieu.desnoy...@efficios.com> wrote: > > - On Sep 1, 2021, at 1:23 PM, lttng-dev > wrote: > > Hi there, > > I am currently evaluating the use of CTF and lttng tooling for application > tracing on windows. We

Re: [lttng-dev] Lttng live protocol

- On Sep 1, 2021, at 1:23 PM, lttng-dev wrote: > Hi there, > I am currently evaluating the use of CTF and lttng tooling for application > tracing on windows. We are exploring alternatives to ETW that are more > customisable. > One thing we would really like to do is real-time monitoring of

[lttng-dev] Lttng live protocol

Hi there, I am currently evaluating the use of CTF and lttng tooling for application tracing on windows. We are exploring alternatives to ETW that are more customisable. One thing we would really like to do is real-time monitoring of our application from another machine. I have a few questions

[lttng-dev] LTTng 2.13.0 - Nordicité - Linux kernel and user-space tracer

Hi everyone, Today is the official release of LTTng 2.13 - Nordicité! It is the result of one year of development from most of the EfficiOS team. The most notable features of this new release are: - Event-rule matches condition triggers and new actions, allowing internal actions or

Re: [lttng-dev] LTTng 32 bits on 64 bits systems - kernel events... but no user-event

Hi Julien, A fix is on the way for libfd-tracker lib problem: https://review.lttng.org/c/lttng-tools/+/6045 > Thank you ! The following modification is working : > lttng-sessiond --consumerd32-libdir=/usr/local/lib32 > --consumerd32-path=/usr/local/lib32/lttng/libexec/lttng-consumerd

Re: [lttng-dev] LTTng 32 bits on 64 bits systems - kernel events... but no user-event

merd32-path=/usr/local/lib32/lttng/libexec/lttng-consumerd --daemonize Regards, Julien De : Jonathan Rajotte-Julien Envoyé : lundi 7 juin 2021 17:24 À : MONTET Julien Cc : lttng-dev Objet : Re: [lttng-dev] LTTng 32 bits on 64 bits systems - kernel events... bu

Re: [lttng-dev] LTTng 32 bits on 64 bits systems - kernel events... but no user-event

Hi, > I am currently trying to add lttng 32bits on a 64bits system with a custom > kernel 4.19.177+ x86_64 (Debian 10.9) > My former attempt only with only a 100% arm32 bits was successful (raspberry). > I am facing now a strange issue : I can record kernel event but not userspace > event... but

Re: [lttng-dev] LTTng 32 bits on 64 bits systems - kernel events... but no user-event

- On Jun 4, 2021, at 9:09 AM, lttng-dev lttng-dev@lists.lttng.org wrote: > Hi LTTng team, > I am currently trying to add lttng 32bits on a 64bits system with a custom > kernel 4.19.177+ x86_64 (Debian 10.9) > My former attempt only with only a 100% arm32 bits was successfu

[lttng-dev] LTTng 32 bits on 64 bits systems - kernel events... but no user-event

Hi LTTng team, I am currently trying to add lttng 32bits on a 64bits system with a custom kernel 4.19.177+ x86_64 (Debian 10.9) My former attempt only with only a 100% arm32 bits was successful (raspberry). I am facing now a strange issue : I can record kernel event but not userspace event...

Re: [lttng-dev] LTTng - Xenomai : different results between timestamp-lttng and rt_time_read()

Am Fr., 21. Mai 2021 um 12:13 Uhr schrieb MONTET Julien : > > Hello Mathieu, Norbert and Jan, > > Thank you for all of your explainations and the overview of the system. > No I didn't change the ipipe patch for the vDSO, I may try this. > If I have correctly understood, this patch prevents Cobalt

[lttng-dev] LTTng container awareness

Hi LTTng had the 2019 plan to decouple tooling for container awareness, how is the progress on that? https://archive.fosdem.org/2019/schedule/event/containers_lttng/ As stated in page 18,LTTng is comprised of many components thatexpect a “monolitic” system. How about the future to

Re: [lttng-dev] LTTng - Xenomai : different results between timestamp-lttng and rt_time_read()

about ? https://postimg.cc/BP4G3bF0 (on 11:02:56:380) https://postimg.cc/q6wHvrcC Regards, De : Norbert Lange Envoyé : jeudi 20 mai 2021 17:39 À : Mathieu Desnoyers Cc : MONTET Julien ; lttng-dev ; Jan Kiszka ; Xenomai Objet : Re: [lttng-dev] LTTng - Xenomai

Re: [lttng-dev] LTTng - Xenomai : different results between timestamp-lttng and rt_time_read()

Am Do., 20. Mai 2021 um 17:09 Uhr schrieb Mathieu Desnoyers : > > - On May 20, 2021, at 9:56 AM, Mathieu Desnoyers > mathieu.desnoy...@efficios.com wrote: > > > - On May 20, 2021, at 9:54 AM, lttng-dev lttng-dev@lists.lttng.org > > wrote: > > > >> -

Re: [lttng-dev] LTTng - Xenomai : different results between timestamp-lttng and rt_time_read()

On 20.05.21 17:09, Mathieu Desnoyers wrote: > - On May 20, 2021, at 9:56 AM, Mathieu Desnoyers > mathieu.desnoy...@efficios.com wrote: > >> - On May 20, 2021, at 9:54 AM, lttng-dev lttng-dev@lists.lttng.org wrote: >> >>> - On May 20, 2021, a

Re: [lttng-dev] LTTng - Xenomai : different results between timestamp-lttng and rt_time_read()

- On May 20, 2021, at 9:56 AM, Mathieu Desnoyers mathieu.desnoy...@efficios.com wrote: > - On May 20, 2021, at 9:54 AM, lttng-dev lttng-dev@lists.lttng.org wrote: > >> - On May 20, 2021, at 5:11 AM, lttng-dev lttng-dev@lists.lttng.org wrote: >> >>> Am Do.

Re: [lttng-dev] LTTng - Xenomai : different results between timestamp-lttng and rt_time_read()

- On May 20, 2021, at 9:54 AM, lttng-dev lttng-dev@lists.lttng.org wrote: > - On May 20, 2021, at 5:11 AM, lttng-dev lttng-dev@lists.lttng.org wrote: > >> Am Do., 20. Mai 2021 um 10:28 Uhr schrieb MONTET Julien >> : >>> >>> Hi Norbert, >>> &

Re: [lttng-dev] LTTng - Xenomai : different results between timestamp-lttng and rt_time_read()

- On May 20, 2021, at 5:11 AM, lttng-dev lttng-dev@lists.lttng.org wrote: > Am Do., 20. Mai 2021 um 10:28 Uhr schrieb MONTET Julien > : >> >> Hi Norbert, >> >> Thank you for your answer ! >> >> Yes, I am using a Xenomai cobalt - xenomai is 3.1 >&

Re: [lttng-dev] LTTng - Xenomai : different results between timestamp-lttng and rt_time_read()

Am Do., 20. Mai 2021 um 10:28 Uhr schrieb MONTET Julien : > > Hi Norbert, > > Thank you for your answer ! > > Yes, I am using a Xenomai cobalt - xenomai is 3.1 > cat /proc/xenomai/version => 3.1 > > After the installation, I tested "test tools" in /proc/xenomai/ and it worked > nice. Just asked

Re: [lttng-dev] LTTng - Xenomai : different results between timestamp-lttng and rt_time_read()

ly good" ? Cheers, De : Norbert Lange Envoyé : jeudi 20 mai 2021 10:20 À : MONTET Julien Cc : lttng-dev@lists.lttng.org Objet : Re: [lttng-dev] LTTng - Xenomai : different results between timestamp-lttng and rt_time_read() Am Do., 20. Mai 2021 um 09:58 Uhr schrieb MONTET Julien

Re: [lttng-dev] LTTng - Xenomai : different results between timestamp-lttng and rt_time_read()

Am Do., 20. Mai 2021 um 09:58 Uhr schrieb MONTET Julien via lttng-dev : > > Hi the developers ! > > CONTEXT > I am currently working on a Raspberry pi 3B with Xenomai and LTTng tools. > Raspbian 10.9 Buster - kernel 4.19.85 > uname -a : Linux raspberrypi 4.19.85-v7+ #5 SMP PREEMPT Wed May 12

[lttng-dev] LTTng - Xenomai : different results between timestamp-lttng and rt_time_read()

Hi the developers ! CONTEXT I am currently working on a Raspberry pi 3B with Xenomai and LTTng tools. Raspbian 10.9 Buster - kernel 4.19.85 uname -a : Linux raspberrypi 4.19.85-v7+ #5 SMP PREEMPT Wed May 12 10:13:37 Both tools are working, but I wonder about the accuracy of LTTng libraries.

Re: [lttng-dev] lttng live event loss with babeltrace2

indow". This is only valid if the viewer is not "late" and have consumed everything at the moment it detach. Cheers - Original Message - > From: "Eqbal" > To: "Jonathan Rajotte-Julien" > Cc: "lttng-dev" > Sent: Monday, Ma

Re: [lttng-dev] lttng live event loss with babeltrace2

Hi, I ran my test with the new changes and it seems to improve the lossiness but not eliminate it. For example it seems in the hello world example that if the application exits too quickly after emitting the tracepoint, we might still lose some events in the consumer even though they are present

Re: [lttng-dev] lttng live event loss with babeltrace2

Hi, See https://github.com/lttng/lttng-tools/commit/c876d657fb08a91ca7c907b92f1b7604aee664ee . We would appreciate your feedback on this if possible based on your use case. Cheers On Mon, May 03, 2021 at 05:05:10PM -0700, Eqbal via lttng-dev wrote: > Hi, > > I have a lttng live session

Re: [lttng-dev] lttng live event loss with babeltrace2

On Mon, May 03, 2021 at 05:05:10PM -0700, Eqbal via lttng-dev wrote: > Hi, > > I have a lttng live session trace consumer application using libbabeltrace2 > where I create a graph to consume lttng live session traces and output to > another sink. I am running the graph in a loop at some polling

Re: [lttng-dev] lttng live event loss with babeltrace2

Hi, On Mon, May 03, 2021 at 05:05:10PM -0700, Eqbal via lttng-dev wrote: > Hi, > > I have a lttng live session trace consumer application using libbabeltrace2 > where I create a graph to consume lttng live session traces and output to > another sink. I am running the graph in a loop at some

[lttng-dev] lttng live event loss with babeltrace2

Hi, I have a lttng live session trace consumer application using libbabeltrace2 where I create a graph to consume lttng live session traces and output to another sink. I am running the graph in a loop at some polling interval as long as I get BT_GRAPH_RUN_STATUS_AGAIN status. What I am noticing

Re: [lttng-dev] lttng-dev Digest, Vol 156, Issue 8

at child > process is schedule to run before parent (Mathieu Desnoyers) > > > -- > > Message: 1 > Date: Tue, 6 Apr 2021 19:46:21 -0400 > From: Jonathan Rajotte-Julien > To: Ramesh Errabolu > Cc: lttng-dev@lists.lttng.org > Subject: Re: [lttng-dev] lttng-dev Diges

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