Re: [sage-devel] Re: Huge virtual memory usage

2016-03-28 Thread Volker Braun
On Monday, March 28, 2016 at 8:16:36 PM UTC+2, William wrote: > > Another very common thing to ulimit is the number of processes. > e.g., the default I think on Ubuntu is maybe 1000. > Yes, and 1000 * RLIMIT_AS is almost always enough to make things very slw... I'm really sad to see that g

Re: [sage-devel] Re: Huge virtual memory usage

2016-03-28 Thread William Stein
On Mon, Mar 28, 2016 at 10:15 AM, Volker Braun wrote: > On Monday, March 28, 2016 at 5:54:34 PM UTC+2, Nils Bruin wrote: >> >> It's a simple one to set, though, and in many contexts it protects against >> silly memory errors (e.g., on a multi-user machine > > > But it doesn't help when you have mu

[sage-devel] Re: Huge virtual memory usage

2016-03-28 Thread Volker Braun
On Monday, March 28, 2016 at 5:54:34 PM UTC+2, Nils Bruin wrote: > > It's a simple one to set, though, and in many contexts it protects > against silly memory errors (e.g., on a multi-user machine > But it doesn't help when you have multiple processes, as its per-process limit only. > Perha

[sage-devel] Re: Huge virtual memory usage

2016-03-28 Thread Andrey Novoseltsev
On Monday, 28 March 2016 09:54:34 UTC-6, Nils Bruin wrote: > > On Monday, March 28, 2016 at 12:35:41 AM UTC-7, Volker Braun wrote: >> >> Presumably this is due to #19883 >> >> There isn't really any problem here, though. If you implement your own >> version of malloc then, in some implementations,

[sage-devel] Re: Huge virtual memory usage

2016-03-28 Thread Nils Bruin
On Monday, March 28, 2016 at 12:35:41 AM UTC-7, Volker Braun wrote: > > Presumably this is due to #19883 > > There isn't really any problem here, though. If you implement your own > version of malloc then, in some implementations, you'll need about as much > virtual memory as ram to do the accoun

[sage-devel] Re: Huge virtual memory usage

2016-03-28 Thread Volker Braun
Presumably this is due to #19883 There isn't really any problem here, though. If you implement your own version of malloc then, in some implementations, you'll need about as much virtual memory as ram to do the accounting. It just uses your 128TB of virtual memory space. On a related note, 'u

[sage-devel] Re: Huge virtual memory usage

2016-03-27 Thread Ralf Stephan
I get a 3.5x increase with 6.9 --> 7.2beta0. Not as much as 20x but still... -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.co

[sage-devel] Re: Huge virtual memory usage

2016-03-27 Thread Andrey Novoseltsev
This WAS the problem. Such allocation makes it just completely pointless to limit address space size to prevent accidents. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an e