Date: Sun, 14 Jan 2024 08:25:36 +0000 From: David Chisnall <theraven@freebsd.org> To: Warner Losh <imp@bsdimp.com> Cc: Sairaj Kodilkar <skodilkar7@gmail.com>, John Baldwin <jhb@freebsd.org>, freebsd-hackers@freebsd.org Subject: Re: New to freeBSD and looking for guidance Message-ID: <160F8174-556C-41AA-8A67-F1A744EDC6D6@freebsd.org> In-Reply-To: <CANCZdfond8jJZrusMt978Gb4hci6efw70btzvJZuX4tOZEu_pA@mail.gmail.com> References: <CANCZdfond8jJZrusMt978Gb4hci6efw70btzvJZuX4tOZEu_pA@mail.gmail.com>
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--Apple-Mail-A9C8399E-7C36-4E7D-A141-714AB644A0E3 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable <html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D= utf-8"></head><body dir=3D"auto"><div dir=3D"ltr"></div><div dir=3D"ltr">I c= ompletely agree that VirtioFS would be a great project.</div><div dir=3D"ltr= "><br></div><div dir=3D"ltr">I disagree that the Doors project was completed= . The implementation got all of the superficial bits (specific to how Swing D= oors were adapted for Solaris, which didn=E2=80=99t really fit with the Free= BSD model) but missed the absolutely critical reason why Doors would be usef= ul: Doors provide a process switch that avoids the scheduler at all and lets= the callee run with the scheduler=E2=80=99s quantum. This is phenomenally u= seful for compartmentalised applications.</div><div dir=3D"ltr"><br></div><d= iv dir=3D"ltr">David</div><div dir=3D"ltr"><br><div dir=3D"ltr"></div><block= quote type=3D"cite">On 13 Jan 2024, at 16:53, Warner Losh <imp@bsdimp.com= > wrote:<br><br></blockquote></div><blockquote type=3D"cite"><div dir=3D"= ltr">=EF=BB=BF<div dir=3D"ltr"><div dir=3D"ltr"><div>Hi Sairaj,</div><div><b= r></div><div>Thanks for your interest in the FreeBSD project. We've been aro= und for a long time, and sometimes ideas on our ideas page are sometimes a b= it old.</div><div><br></div><div>The Solaris Doors project was done a few ye= ars ago at <a href=3D"https://github.com/bnovkov/freebsd-doors">https://gith= ub.com/bnovkov/freebsd-doors</a> so might not be a good choice.</div><div><b= r></div><div>I'm not familiar with the bhyve integration one. John Baldwin w= ould be the best person to answer that question. gdb works well enough for m= e, but this one may still be relevant since I think it would greatly improve= performance.<br></div><div><br></div><div>Another idea in line with your vi= rtualization would be to implement virtiofs on FreeBSD. We have virtual netw= ork, block , console, etc, but not virtiofs. This is basically FUSE over vir= tio channels, and isn't too big of a project that would let you use yo= ur virtualization experience and learn about filesystems.</div><div><br></di= v><div>There might be other projects as well. This is the one that occurs to= me.</div><div><br></div><div>Warner<br></div></div><br><div class=3D"gmail_= quote"><div dir=3D"ltr" class=3D"gmail_attr">On Sat, Jan 13, 2024 at 8:53=E2= =80=AFAM Sairaj Kodilkar <<a href=3D"mailto:skodilkar7@gmail.com">skodilk= ar7@gmail.com</a>> wrote:<br></div><blockquote class=3D"gmail_quote" styl= e=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding= -left:1ex"><div dir=3D"ltr"><div dir=3D"ltr"><div>Hello hackers</div><div>I a= m Sairaj Kodilkar, a kernel enthusiast=20 and looking to explore FreeBSD. I am currently working at samsung=20 semiconductor research and previously interned as linux kernel developer at Texas instruments, where I worked on adding xen hypervisor support=20 for their SOC. I previously contributed to unikernel as part of google=20 summer of code where I worked on synchronizing virtio network driver.<br></d= iv><div>I was going through the ideas list and found "<font size=3D"2"= ><span style=3D"font-weight:normal">Solaris Doors IPC Implementation" and </= span></font><font size=3D"2"><span style=3D"font-weight:normal">"bhyve gdb-s= tub/dcons integration". I would like to know if they are still available. <b= r></span></font></div><div><font size=3D"2"><span style=3D"font-weight:norma= l">Also I am new to FreeBSD, so any guidance on these topics is appreciated.= </span></font></div><div><font size=3D"2"><span style=3D"font-weight:normal"= ><br></span></font></div><div><font size=3D"2"><span style=3D"font-weight:no= rmal">Regards</span></font></div><div><font size=3D"2"><span style=3D"font-w= eight:normal">Sairaj Kodilkar</span></font></div></div></div> </blockquote></div></div> </div></blockquote></body></html>= --Apple-Mail-A9C8399E-7C36-4E7D-A141-714AB644A0E3--
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