Date: Thu, 23 Feb 2023 09:19:36 -0300 From: Nicolas Goldman <nicolasgoldman07@gmail.com> To: freebsd-hackers@freebsd.org Subject: Performance issues with custom kernel and schedgraph tool Message-ID: <CAPrTifWyRf9RWcDWmr9wQTKMxHwacA0V8Bhvvg7o3cwnYuvQ0Q@mail.gmail.com>
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[-- Attachment #1 --] Hello everyone, I have recently been experiencing performance issues on my FreeBSD system, specifically with the task scheduler. I have* modified the scheduler (*I’m working on a short-term scheduler based on Petri Nets*)* and now see too much idle processor time. I have tried using the schedgraph tool to analyze the scheduler performance but I am receiving display errors. I want to ask the community if anyone has experienced similar issues with the FreeBSD task scheduler, and if they have any advice or solutions for improving performance. Is there any way to use the schedgraph tool in non-GUI mode, as I am having trouble running it on my system without a graphical display? Any help or suggestions would be greatly appreciated. Thank you in advance for your assistance! Best regards, Nico. [-- Attachment #2 --] <div dir="ltr"><div>Hello everyone,</div><div><br></div><div>I have recently been experiencing performance issues on my FreeBSD system, specifically with the task scheduler. I have<b> modified the scheduler (</b>I’m working on a short-term scheduler based on Petri Nets<b>)</b> and now see too much idle processor time. I have tried using the schedgraph tool to analyze the scheduler performance but I am receiving display errors.</div><div><br></div><div>I want to ask the community if anyone has experienced similar issues with the FreeBSD task scheduler, and if they have any advice or solutions for improving performance. Is there any way to use the schedgraph tool in non-GUI mode, as I am having trouble running it on my system without a graphical display?</div><div><br></div><div>Any help or suggestions would be greatly appreciated. Thank you in advance for your assistance!</div><div><br></div><div>Best regards, Nico.</div></div>
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