Hi My question isn't directly related to lttng but I would welcome some advice.
Our Linux application is showing 'blips' whereby there are occasional increases in processing times. This is for a user process that runs on an isolated core. Using lttng and TraceCompass I have found that the 'blip' sometimes coincides with a TIMER_SOFTIRQ event on the isolated core. I was surprised that software interrupts may run on isolated cores. Is there a way of preventing this? Are there any techniques using lttng to gain more information related to the interrupt (e.g. what is causing it)? Best regards David