Re: Memory Consumption High After Upgrading to 2.13 from 2.10

Hi Lakshya, what is the output of the following commands on both systems: * nproc (32, I assume) * cat /sys/devices/system/cpu/possible also, when you are running instrumented applications which user(s) are you running applications as? thanks, kienan On 3/11/25 6:35 AM, Gour DEV via lttng-d

Re:Re: need help for avoiding system calls while using URCU (Userspace RCU)

dear kienanThank you for your guidance, I've found DKDP's URCU successfully avoids system calls. Grateful for your support!Best regards,fangkai At 2025-03-07 00:17:34, "Kienan Stewart" wrote: >Hi 方锴, > >On 3/4/25 3:09 AM, 方锴 via lttng-dev wrote: > >> I have referenced your project, URCU (Userspa

Re: Github Action Runners creating world-writable shared memory section: lttng-ust-wait-n

Hi Bill, I don't have the context about gha-runner to answer regarding their use of LTTng. I can however, give a bit of context about how the those shared memory allocations are used within the scope of LTTng. These shared memory sections are used for presence/absence notifications between

Memory Consumption High After Upgrading to 2.13 from 2.10

Hello, I have recently upgraded from lttng 2.10 to 2.13 as part of servers migration from buster to bookworm. lttng 2.10.6 - KeKriek to lttng 2.13.9 - Nordicité I see an increase in memory consumption upto 11Gig after my recent upgrade. In buster root@localhost:~# top -b -n 1 | grep lttng PID

Re: Memory Consumption High After Upgrading to 2.13 from 2.10

Hi Lakshya, what is the output of the following commands on both systems: * nproc (32, I assume) * cat /sys/devices/system/cpu/possible On 3/10/25 10:02 AM, Gour DEV via lttng-dev wrote: Hello, I have recently upgraded from lttng 2.10 to 2.13 as part of servers migration from buster to bookwo

Re: Memory Consumption High After Upgrading to 2.13 from 2.10

Hi Lakshya, On 3/11/25 12:25 PM, Gour DEV wrote: > Hi, Kienan > > here is the requested output > > root@localhost:~# top -b -n 1 | grep lttng > 4841 root 20 0 11.5g 11.0g 11.0g S 5.9 35.4 8:39.93 > lttng-c+ > 4824 root 20 0 1098824 26456 5380 S 0.0 0.1 0:0

Github Action Runners creating world-writable shared memory section: lttng-ust-wait-n

GHA runners appear to use lttng-ust for some sort of IPC between runners on the same machine. $ ll /dev/shm/ -rw-rw-rw- 1 gha-runner-7 gha-runner-7 4096 Feb 20 04:03 lttng-ust-wait-8 -rw-r- 1 gha-runner-8 gha-runner-8 4096 Feb 20 04:03 lttng-ust-wait-8-558 -rw-r- 1 gha-runner-7 gha-runn

Memory Consumption High After Upgrading to 2.13 from 2.10

Hello, I have recently upgraded from lttng 2.10 to 2.13 as part of servers migration from buster to bookworm. lttng 2.10.6 - KeKriek to lttng 2.13.9 - Nordicité I see an increase in memory consumption upto 11Gig after my recent upgrade. In buster root@localhost:~# top -b -n 1 | grep lttng PID

Re:Re: need help for avoiding system calls while using URCU (Userspace RCU)

dear Mathieu Thank you for your guidance, I've found DKDP's URCU successfully avoids system calls. Grateful for your support!Best regards,fangkai At 2025-03-07 00:58:21, "Mathieu Desnoyers" wrote: >On 2025-03-06 11:17, Kienan Stewart via lttng-dev wrote: >> Hi 方锴, >> >> On 3/4/25 3:09 AM, 方锴