Re: OpenBSD performance upgrade
On Fri, Jun 8, 2018 at 10:13 AM Elias M. Mariani wrote: > I usually run long computations on OpenBSD-current, in the last few > days I see an upgrade in the performance of the process (in this case > I have 6 threads running a very optimized assembler code). > Each iteration of the code was about 14 sec. and now is around 13 sec. > Don't mind the computation, the question is more about if something > was changed (and if so what) to hit the performance so much, the > compilation is the same as before, so the code did not change and the > software does not use anything from ports, only the standard C > library. > A more accurate description would be that the threads are more > homogeneous in relation with the iterations time, maybe one thread > suddenly give a 11 sec. result, and another 15, probably related with > thread reallocations, now I have a steady time in all the threads and > in average the numbers are better. > Anyways... Better is better. Just curious to know why is working better. :D > If the "optimized assembler" that the threads are running uses AVX or similar "extended CPU state" extensions then the improvement is almost certainly from my switch amd64 from "lazy FPU switching" to what I'll call "semi-eager switching", where the current thread's registers are always ensured to be loaded before returning to userspace, eliminating the need for extra userspace->kernel->userspace transitions and IPIs to load the registers in the current CPU. Glad to hear it's such a large improvement for your processing. Enjoy, and remember to tip your OS vendor! Philip Guenther
Re: IKED with multiple clients and nat
Thank you Stuart, for the clues. Even a little context can make a huge difference when trying to understand something new. Really appreciate it. :)
Re: OpenBSD performance upgrade
Forgot to add: amd64, last version of current. 2018-06-08 14:12 GMT-03:00 Elias M. Mariani : > Hi, > Just another silly question. > I usually run long computations on OpenBSD-current, in the last few > days I see an upgrade in the performance of the process (in this case > I have 6 threads running a very optimized assembler code). > Each iteration of the code was about 14 sec. and now is around 13 sec. > Don't mind the computation, the question is more about if something > was changed (and if so what) to hit the performance so much, the > compilation is the same as before, so the code did not change and the > software does not use anything from ports, only the standard C > library. > A more accurate description would be that the threads are more > homogeneous in relation with the iterations time, maybe one thread > suddenly give a 11 sec. result, and another 15, probably related with > thread reallocations, now I have a steady time in all the threads and > in average the numbers are better. > Anyways... Better is better. Just curious to know why is working better. :D > > Cheers. > Elias,
OpenBSD performance upgrade
Hi, Just another silly question. I usually run long computations on OpenBSD-current, in the last few days I see an upgrade in the performance of the process (in this case I have 6 threads running a very optimized assembler code). Each iteration of the code was about 14 sec. and now is around 13 sec. Don't mind the computation, the question is more about if something was changed (and if so what) to hit the performance so much, the compilation is the same as before, so the code did not change and the software does not use anything from ports, only the standard C library. A more accurate description would be that the threads are more homogeneous in relation with the iterations time, maybe one thread suddenly give a 11 sec. result, and another 15, probably related with thread reallocations, now I have a steady time in all the threads and in average the numbers are better. Anyways... Better is better. Just curious to know why is working better. :D Cheers. Elias,
testimonial of OpenBGPd users
Hello, as read here http://www.openbgpd.org/users.html, here is our testimonial of OpenBGPd users. Aquilenet (www.aquilenet.fr) member of the FFDN (www.ffdn.org), France Aquilenet is a non profit organisation and a "do it yourself ISP", member of a Federation of similar ISP in France called FFDN. We are netneutrality builders, helping for more freedom and building networks. Since 2011 our backbone network is stable due to our OpenBSD build on Carp/Pfsync/Ospf/Packet Filter magic, and our transit based on OpenBGPD. The work of the community is quite impressive and we are really happy to contribute to these projects. We encourage all ISP to use OpenBSD/OpenBGPD as simlple as efficient ! Kind regards, Sacha.
Re: OpenBSD logo on my private hompage. It is allowed?
On 08/06/18 17:39, Janne Johansson wrote: > Den fre 8 juni 2018 kl 04:41 skrev Eric Furman : > >> You can make and sell any product you want using OBSD. >> No fee or questions asked. Even Baby-Mulching Machines. >> > > ..and for that we are ever so thankful. > Likewise, I have no idea what I'd do if I had to fork out for software licenses every time I needed to dispose of a bonzai… ;-) -- Stuart Longland (aka Redhatter, VK4MSL) I haven't lost my mind... ...it's backed up on a tape somewhere.
Re: OpenBSD logo on my private hompage. It is allowed?
Den fre 8 juni 2018 kl 04:41 skrev Eric Furman : > You can make and sell any product you want using OBSD. > No fee or questions asked. Even Baby-Mulching Machines. > ..and for that we are ever so thankful. -- May the most significant bit of your life be positive.
Re: "Halted" firewall - is it a good idea as feature? or just a fun story
On 07/06/18 20:04, Kollar Arpad wrote: > Hello, > > http://www.drdobbs.com/halted-firewalls/199101324 > > What do you think of it? :) any similar feature in OpenBSD? :D you might be interested in securelevel(7) G
Re: OpenBSD logo on my private hompage. It is allowed?
On 08/06/18 02:51, justina colmena wrote: > On June 7, 2018 3:27:30 PM AKDT, Johannes Krottmayer wrote: > " ... it is our intent that anyone be able to use these images to represent > OpenBSD in a positive light -- but do not make profit from them " > > The no-profit clause is new. Sounds like I'd better dump OpenBSD entirely if > I want to make a profit at any sort of business or keep any of my private > information private or retain any of MY intellectual property for my own use. > There's a giant hole in my pocket that needs to be sewn up. Not sure where to > go. The lawyers are coming out like alligators from the Florida swamps. This > is as bad as SCO and groklaw. > > OpenBSD is for non-profit use only. Thank you for bringing that to my > attention. It's disturbing how many trolls gather in this list. GTFO G
