Re: [PATCH 2/2 v2] mm: allow to set overcommit ratio more precisely

2013-09-06 Thread Jerome Marchand
On 09/06/2013 12:11 AM, Pavel Machek wrote: > hi! > This patch adds the new overcommit_ratio_ppm sysctl variable that allow to set overcommit ratio with a part per million precision. The old overcommit_ratio variable can still be used to set and read the ratio with a 1% precisi

Re: [PATCH 2/2 v2] mm: allow to set overcommit ratio more precisely

2013-09-05 Thread Pavel Machek
hi! > >> This patch adds the new overcommit_ratio_ppm sysctl variable that > >> allow to set overcommit ratio with a part per million precision. > >> The old overcommit_ratio variable can still be used to set and read > >> the ratio with a 1% precision. That way, overcommit_ratio interface > >> is

Re: [PATCH 2/2 v2] mm: allow to set overcommit ratio more precisely

2013-09-05 Thread Jerome Marchand
On 09/05/2013 04:41 PM, Dave Hansen wrote: > On 09/05/2013 05:51 AM, Jerome Marchand wrote: >> This patch adds the new overcommit_ratio_ppm sysctl variable that >> allow to set overcommit ratio with a part per million precision. >> The old overcommit_ratio variable can still be used to set and read

Re: [PATCH 2/2 v2] mm: allow to set overcommit ratio more precisely

2013-09-05 Thread Dave Hansen
On 09/05/2013 05:51 AM, Jerome Marchand wrote: > This patch adds the new overcommit_ratio_ppm sysctl variable that > allow to set overcommit ratio with a part per million precision. > The old overcommit_ratio variable can still be used to set and read > the ratio with a 1% precision. That way, over

[PATCH 2/2 v2] mm: allow to set overcommit ratio more precisely

2013-09-05 Thread Jerome Marchand
Changes since v1: - use overcommit_ratio_ppm instead of overcommit_kbytes - keep both variables in sync Some applications that run on HPC clusters are designed around the availability of RAM and the overcommit ratio is fine tuned to get the maximum usage of memory without swapping. With growing