Re: [Qemu-devel] [PATCH 13/15] exec: use mmap for PhysPageMap->nodes

2016-07-14 Thread Peter Lieven
Am 13.07.2016 um 12:27 schrieb Paolo Bonzini: On 12/07/2016 16:34, Peter Lieven wrote: Am 11.07.2016 um 12:37 schrieb Paolo Bonzini: On 11/07/2016 11:31, Peter Lieven wrote: Am 28.06.2016 um 12:43 schrieb Paolo Bonzini: On 28/06/2016 11:01, Peter Lieven wrote: this was causing serious frame

Re: [Qemu-devel] [PATCH 13/15] exec: use mmap for PhysPageMap->nodes

2016-07-13 Thread Paolo Bonzini
On 12/07/2016 16:34, Peter Lieven wrote: > Am 11.07.2016 um 12:37 schrieb Paolo Bonzini: >> >> On 11/07/2016 11:31, Peter Lieven wrote: >>> Am 28.06.2016 um 12:43 schrieb Paolo Bonzini: On 28/06/2016 11:01, Peter Lieven wrote: > this was causing serious framentation in conjunction with t

Re: [Qemu-devel] [PATCH 13/15] exec: use mmap for PhysPageMap->nodes

2016-07-12 Thread Peter Lieven
Am 11.07.2016 um 12:37 schrieb Paolo Bonzini: > > On 11/07/2016 11:31, Peter Lieven wrote: >> Am 28.06.2016 um 12:43 schrieb Paolo Bonzini: >>> On 28/06/2016 11:01, Peter Lieven wrote: this was causing serious framentation in conjunction with the subpages since RCU was introduced. The nod

Re: [Qemu-devel] [PATCH 13/15] exec: use mmap for PhysPageMap->nodes

2016-07-11 Thread Paolo Bonzini
On 11/07/2016 11:31, Peter Lieven wrote: > Am 28.06.2016 um 12:43 schrieb Paolo Bonzini: >> >> On 28/06/2016 11:01, Peter Lieven wrote: >>> this was causing serious framentation in conjunction with the >>> subpages since RCU was introduced. The node space was allocated >>> at approx 32kB then rea

Re: [Qemu-devel] [PATCH 13/15] exec: use mmap for PhysPageMap->nodes

2016-07-11 Thread Peter Lieven
Am 11.07.2016 um 11:31 schrieb Peter Lieven: Am 28.06.2016 um 12:43 schrieb Paolo Bonzini: On 28/06/2016 11:01, Peter Lieven wrote: this was causing serious framentation in conjunction with the subpages since RCU was introduced. The node space was allocated at approx 32kB then reallocted to ap

Re: [Qemu-devel] [PATCH 13/15] exec: use mmap for PhysPageMap->nodes

2016-07-11 Thread Peter Lieven
Am 28.06.2016 um 12:43 schrieb Paolo Bonzini: On 28/06/2016 11:01, Peter Lieven wrote: this was causing serious framentation in conjunction with the subpages since RCU was introduced. The node space was allocated at approx 32kB then reallocted to approx 75kB and this a few hundred times at star

Re: [Qemu-devel] [PATCH 13/15] exec: use mmap for PhysPageMap->nodes

2016-06-28 Thread Peter Lieven
Am 28.06.2016 um 12:43 schrieb Paolo Bonzini: On 28/06/2016 11:01, Peter Lieven wrote: this was causing serious framentation in conjunction with the subpages since RCU was introduced. The node space was allocated at approx 32kB then reallocted to approx 75kB and this a few hundred times at star

Re: [Qemu-devel] [PATCH 13/15] exec: use mmap for PhysPageMap->nodes

2016-06-28 Thread Paolo Bonzini
On 28/06/2016 11:01, Peter Lieven wrote: > this was causing serious framentation in conjunction with the > subpages since RCU was introduced. The node space was allocated > at approx 32kB then reallocted to approx 75kB and this a few hundred > times at startup. And thanks to RCU the freeing was d