Re: [CentOS] Linux ate my RAM...

2015-11-20 Thread Kwan Lowe
On Wed, Nov 18, 2015 at 7:51 PM, Itamar Reis Peixoto wrote: > try systemd-nspawn and use it instead of virtualizing, will save you some > bits of memory. Interesting.. Not an option for us currently but perhaps as an alternative to Docker it will come in handy. Thanks for the feedback. Kwan ___

Re: [CentOS] Linux ate my RAM...

2015-11-20 Thread Kwan Lowe
Warren: Thanks for the good info and link. On Wed, Nov 18, 2015 at 4:41 PM, Warren Young wrote: > On Nov 18, 2015, at 1:20 PM, Kwan Lowe wrote: >> >> Because of caching, from VMWare's perspective, all Linux memory is >> being "used”. > > Nope. VMware’s memory ballooning feature purposely kee

Re: [CentOS] Linux ate my RAM...

2015-11-19 Thread Warren Young
On Nov 18, 2015, at 5:51 PM, Itamar Reis Peixoto wrote: > > On 2015-11-18 19:41, Warren Young wrote: >> On Nov 18, 2015, at 1:20 PM, Kwan Lowe wrote: > > try systemd-nspawn and use it instead of virtualizing, will save you some > bits of memory. That’s fine if you’re after the isolation feat

Re: [CentOS] Linux ate my RAM...

2015-11-18 Thread Itamar Reis Peixoto
On 2015-11-18 19:41, Warren Young wrote: On Nov 18, 2015, at 1:20 PM, Kwan Lowe wrote: try systemd-nspawn and use it instead of virtualizing, will save you some bits of memory. ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mai

Re: [CentOS] Linux ate my RAM...

2015-11-18 Thread m . roth
Warren Young wrote: > On Nov 18, 2015, at 1:20 PM, Kwan Lowe wrote: >> >> Because of caching, from VMWare's perspective, all Linux memory is >> being "used”. > > Nope. VMware’s memory ballooning feature purposely keeps some of the > guest’s RAM locked away from the kernel. This is where RAM come

Re: [CentOS] Linux ate my RAM...

2015-11-18 Thread Warren Young
On Nov 18, 2015, at 1:20 PM, Kwan Lowe wrote: > > Because of caching, from VMWare's perspective, all Linux memory is > being "used”. Nope. VMware’s memory ballooning feature purposely keeps some of the guest’s RAM locked away from the kernel. This is where RAM comes from when another guest n

[CentOS] Linux ate my RAM...

2015-11-18 Thread Kwan Lowe
Hello everyone, Excuse the title. I'm trying to do something very specific that goes against some common assumptions. I am aware of how Linux uses available memory to cache. This, in almost all cases, is desirable. I've spent years explaining to users how to properly read the free output. I'm no