Date: Fri, 5 Sep 2025 23:27:07 +0100 From: Nuno Teixeira <eduardo@freebsd.org> To: Colin Percival <cperciva@freebsd.org> Cc: src-committers@freebsd.org, dev-commits-src-all@freebsd.org, dev-commits-src-main@freebsd.org Subject: Re: git: af60084978a4 - main - Add description for WITH_PTHREADS_ASSERTIONS Message-ID: <CAFDf7UJbOO8zuMg9WTCkm-xaVZaZjE48PKardu3EYb4vqQ5ECg@mail.gmail.com> In-Reply-To: <61bbeec6-6784-4c17-ac14-c1f5f5b68366@freebsd.org> References: <202509052136.585La5mx020210@gitrepo.freebsd.org> <CAFDf7UKymJ_3YefuHzO6ri=_GU44PcDZEQKSmGoMrmrBmxdttw@mail.gmail.com> <61bbeec6-6784-4c17-ac14-c1f5f5b68366@freebsd.org>
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--0000000000003f5638063e155769 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Thanks for the hint, I missed 642cd511028b . Think I'm good now: /etc/src.conf WITH_MALLOC_PRODUCTION=3Dyes WITHOUT_LLVM_ASSERTIONS=3Dyes WITHOUT_PTHREADS_ASSERTIONS=3Dyes Cheers! Colin Percival <cperciva@freebsd.org> escreveu (sexta, 5/09/2025 =C3=A0(s) 23:07): > On 9/5/25 14:57, Nuno Teixeira wrote: > > For people that turn off debug on main, should WITH_PTHREADS_ASSERTIONS > be > > turned off? > > > > e.g. > > /etc/src.conf: > > WITH_MALLOC_PRODUCTION=3Dyes > > WITHOUT_LLVM_ASSERTIONS=3Dyes > > According to commit 642cd511028b running WITHOUT_PTHREADS_ASSERTIONS > improves > mutex performance by 5-18%. So yes if you want maximal performance on HE= AD > you should probably turn this off. > > Colin Percival --0000000000003f5638063e155769 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr"><div>Thanks for the hint, I missed=C2=A0642cd511028b .</di= v><div><br></div><div>Think I'm good now:</div><div><br></div><div>/etc= /src.conf</div><div>WITH_MALLOC_PRODUCTION=3Dyes<br>WITHOUT_LLVM_ASSERTIONS= =3Dyes</div><div>WITHOUT_PTHREADS_ASSERTIONS=3Dyes</div><div><br></div><div= >Cheers!</div><div><br></div><div><br></div><div class=3D"gmail_quote gmail= _quote_container"><div dir=3D"ltr" class=3D"gmail_attr">Colin Percival <= <a href=3D"mailto:cperciva@freebsd.org">cperciva@freebsd.org</a>> escrev= eu (sexta, 5/09/2025 =C3=A0(s) 23:07):<br></div><blockquote class=3D"gmail_= quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,= 204);padding-left:1ex">On 9/5/25 14:57, Nuno Teixeira wrote:<br> > For people that turn off debug on main, should=C2=A0WITH_PTHREADS_ASSE= RTIONS be <br> > turned off?<br> > <br> > e.g.<br> > /etc/src.conf:<br> > WITH_MALLOC_PRODUCTION=3Dyes<br> > WITHOUT_LLVM_ASSERTIONS=3Dyes<br> <br> According to commit 642cd511028b running WITHOUT_PTHREADS_ASSERTIONS improv= es<br> mutex performance by 5-18%.=C2=A0 So yes if you want maximal performance on= HEAD<br> you should probably turn this off.<br> <br> Colin Percival</blockquote></div></div> --0000000000003f5638063e155769--
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