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boundary="Apple-Mail=_B7955D73-2A38-4FFC-8127-70A874A5C10F" List-Id: User questions List-Archive: https://lists.freebsd.org/archives/freebsd-questions List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-questions@freebsd.org X-BeenThere: freebsd-questions@freebsd.org Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3731.200.110.1.12\)) Subject: Performance issues with custom kernel and schedgraph tool Message-Id: <6327ECF7-DA1F-4144-B2CF-F9E3CE7B55C2@gmail.com> Date: Wed, 22 Feb 2023 10:39:24 -0300 To: "questions@freebsd.org (" X-Mailer: Apple Mail (2.3731.200.110.1.12) X-Spamd-Result: default: False [-3.50 / 15.00]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-1.000]; MV_CASE(0.50)[]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20210112]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36:c]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[questions@freebsd.org]; ARC_NA(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim]; RCVD_TLS_LAST(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[2607:f8b0:4864:20::c32:from]; TO_DN_ALL(0.00)[]; RCVD_COUNT_THREE(0.00)[3]; FREEMAIL_FROM(0.00)[gmail.com]; MID_RHS_MATCH_FROM(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; MIME_TRACE(0.00)[0:+,1:+,2:~]; FROM_EQ_ENVFROM(0.00)[]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; FREEMAIL_ENVFROM(0.00)[gmail.com]; MLMMJ_DEST(0.00)[questions@freebsd.org] X-Rspamd-Queue-Id: 4PMHMH1pgZz3hBn X-Spamd-Bar: --- X-ThisMailContainsUnwantedMimeParts: N --Apple-Mail=_B7955D73-2A38-4FFC-8127-70A874A5C10F Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Hello everyone, I have recently been experiencing performance issues on my FreeBSD = system, specifically with the task scheduler. I have modified the = scheduler (I=E2=80=99m 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.= --Apple-Mail=_B7955D73-2A38-4FFC-8127-70A874A5C10F Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8
Hello = everyone,

I have recently been experiencing = performance issues on my FreeBSD system, specifically with the task = scheduler. I have modified the scheduler (I=E2=80=99m 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.
= --Apple-Mail=_B7955D73-2A38-4FFC-8127-70A874A5C10F--