Re: [CentOS] Transparent HugePages question

2016-08-24 Thread John R Pierce
On 8/24/2016 11:49 AM, Laurentiu Soica wrote: So basically you're saying that this THP feature is broken for CentOS 7 ? The feature is enabled by default. Is there a thread opened on this issue ? SQL database folks seem to say to turn it off regardless of the OS. I think the whole thing is b

Re: [CentOS] Transparent HugePages question

2016-08-24 Thread m . roth
Laurentiu Soica wrote: > So basically you're saying that this THP feature is broken for CentOS 7 ? > The feature is enabled by default. Is there a thread opened on this issue > ? I'm not sure it's broken, per se, but rather that something that I don't know may cause it to do this. It was certainly

Re: [CentOS] Transparent HugePages question

2016-08-24 Thread Laurentiu Soica
So basically you're saying that this THP feature is broken for CentOS 7 ? The feature is enabled by default. Is there a thread opened on this issue ? În mie., 24 aug. 2016 la 18:13, a scris: > Laurentiu Soica wrote: > > Hello, > > > > I have a CentOS 7 installation on baremetal with 2 CPUs, 10 c

Re: [CentOS] Transparent HugePages question

2016-08-24 Thread m . roth
Laurentiu Soica wrote: > Hello, > > I have a CentOS 7 installation on baremetal with 2 CPUs, 10 cores each and > HT enabled, 128 GB RAM. > > The system has transparent hugetables enabled. > So it turns out that even is I have the THP enabled the pages still have a > size of 4K . > > Is there any e

[CentOS] Transparent HugePages question

2016-08-24 Thread Laurentiu Soica
Hello, I have a CentOS 7 installation on baremetal with 2 CPUs, 10 cores each and HT enabled, 128 GB RAM. The system has transparent hugetables enabled. cat /sys/kernel/mm/transparent_hugepage/enabled [always] madvise never The system reports anonymous hugepages pages usage and a size of hugepa