Re: [DNG] Ascii to Beowulf upgrade - 32% slowdown !

2020-06-15 Thread Steve Litt
On Sun, 14 Jun 2020 08:46:48 +0200 Riccardo Mottola via Dng wrote: > Hi, > > On 6/12/20 9:21 PM, Steve Litt wrote: > >> Maybe try ;https://make-linux-fast-again.com/ kerneloptions to > >> disable all spectre and meltdown stuff > > I hope you mean the preceding as a diagnostic test and not

Re: [DNG] Ascii to Beowulf upgrade - 32% slowdown !

2020-06-14 Thread Hendrik Boom
On Sun, Jun 14, 2020 at 08:46:48AM +0200, Riccardo Mottola via Dng wrote: > Hi, > > On 6/12/20 9:21 PM, Steve Litt wrote: > > > Maybe try ;https://make-linux-fast-again.com/ kerneloptions to > > > disable all spectre and meltdown stuff > > I hope you mean the preceding as a diagnostic test and

Re: [DNG] Ascii to Beowulf upgrade - 32% slowdown !

2020-06-14 Thread Riccardo Mottola via Dng
Hi, On 6/12/20 9:21 PM, Steve Litt wrote: Maybe try ;https://make-linux-fast-again.com/ kerneloptions to disable all spectre and meltdown stuff I hope you mean the preceding as a diagnostic test and not as a solution. first, diagnostic on what is slowing down and stealing performance in

Re: [DNG] Ascii to Beowulf upgrade - 32% slowdown !

2020-06-14 Thread Riccardo Mottola via Dng
Hi all, On 6/13/20 12:24 PM, Patrick Erdmann wrote: Just to be sure, try this line as kernel parameters: noibrs noibpb nopti nospectre_v2 nospectre_v1 l1tf=off nospec_store_bypass_disable no_stf_barrier mds=off tsx=on tsx_async_abort=off mitigations=off I tried all "noibrs noibpb nopti

Re: [DNG] Ascii to Beowulf upgrade - 32% slowdown !

2020-06-14 Thread Riccardo Mottola via Dng
Hi, On 6/13/20 7:45 PM, Harald Arnesen via Dng wrote: Do you compile ArcticFox with the same compiler in both cases? GCC gets slower for each release, it seems... Yes, same version, gcc 6.5 - the highest I can use to compile. I have issues compiling it with gcc 7 (actually, linking it...).

Re: [DNG] Ascii to Beowulf upgrade - 32% slowdown !

2020-06-13 Thread Harald Arnesen via Dng
Patrick Erdmann [13.06.2020 12:24]: > My test case is compiling ArcticFox, thus something in the realm of > Firefox: lots of compiler activity, make, disk access, make and python. > But, of course, predominant factor is compilation and linking. > > With ascii, I was consistently (= not just one

Re: [DNG] Ascii to Beowulf upgrade - 32% slowdown !

2020-06-13 Thread Patrick Erdmann
On 12.06.20 13:02, d...@d404.nl wrote: > On 12-06-2020 12:49, Riccardo Mottola via Dng wrote: >> Hi all! >> >> I just upgraded from ascii to beowulf a pretty decent laptop, equipped >> with a core i7 and 8GB of RAM. >> >> I upgraded everything in place: so same desktop environment, same >>

Re: [DNG] Ascii to Beowulf upgrade - 32% slowdown !

2020-06-12 Thread Hendrik Boom
On Fri, Jun 12, 2020 at 03:21:28PM -0400, Steve Litt wrote: > On Fri, 12 Jun 2020 15:44:38 +0200 > Bastiaan van den Berg wrote: > > > Maybe try ; https://make-linux-fast-again.com/ kerneloptions to > > disable all spectre and meltdown stuff > > I hope you mean the preceding as a diagnostic

Re: [DNG] Ascii to Beowulf upgrade - 32% slowdown !

2020-06-12 Thread Steve Litt
On Fri, 12 Jun 2020 15:44:38 +0200 Bastiaan van den Berg wrote: > Maybe try ; https://make-linux-fast-again.com/ kerneloptions to > disable all spectre and meltdown stuff I hope you mean the preceding as a diagnostic test and not as a solution. SteveT Steve Litt May 2020 featured book:

Re: [DNG] Ascii to Beowulf upgrade - 32% slowdown !

2020-06-12 Thread viverna
il devuanizzato Bastiaan van den Berg il 12-06-20 15:44:38 ha scritto: Maybe try ; https://make-linux-fast-again.com/ kerneloptions to disable all spectre and meltdown stuff Experimented slowdown me too. Thanks for reminding me this site. Joking, risky and written immediately one line

Re: [DNG] Ascii to Beowulf upgrade - 32% slowdown !

2020-06-12 Thread Bastiaan van den Berg
Maybe try ; https://make-linux-fast-again.com/ kerneloptions to disable all spectre and meltdown stuff ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng

Re: [DNG] Ascii to Beowulf upgrade - 32% slowdown !

2020-06-12 Thread Andrew McGlashan via Dng
Hi, On 12/6/20 8:49 pm, Riccardo Mottola via Dng wrote: > Hi all! > > I just upgraded from ascii to beowulf a pretty decent laptop, equipped > with a core i7 and 8GB of RAM. > > I upgraded everything in place: so same desktop environment, same > applications, same hard disk... just "apt-get

Re: [DNG] Ascii to Beowulf upgrade - 32% slowdown !

2020-06-12 Thread d...@d404.nl
On 12-06-2020 12:49, Riccardo Mottola via Dng wrote: > Hi all! > > I just upgraded from ascii to beowulf a pretty decent laptop, equipped > with a core i7 and 8GB of RAM. > > I upgraded everything in place: so same desktop environment, same > applications, same hard disk... just "apt-get

[DNG] Ascii to Beowulf upgrade - 32% slowdown !

2020-06-12 Thread Riccardo Mottola via Dng
Hi all! I just upgraded from ascii to beowulf a pretty decent laptop, equipped with a core i7 and 8GB of RAM. I upgraded everything in place: so same desktop environment, same applications, same hard disk... just "apt-get dist-upgrade" essentially. I even kept gcc6 because I had it before and I