RE: [PATCH 07/12] percpu: add block level scan_hint

nnis Zhou > > > Sent: 2019年2月28日 10:19 > > > To: Dennis Zhou ; Tejun Heo ; > > > Christoph Lameter > > > Cc: Vlad Buslov ; kernel-t...@fb.com; > > > linux...@kvack.org; linux-kernel@vger.kernel.org > > > Subject: [PATCH 07/12] percpu: add block level scan_h

Re: [PATCH 07/12] percpu: add block level scan_hint

Christoph > > Lameter > > Cc: Vlad Buslov ; kernel-t...@fb.com; > > linux...@kvack.org; linux-kernel@vger.kernel.org > > Subject: [PATCH 07/12] percpu: add block level scan_hint > > > > Fragmentation can cause both blocks and chunks to have an early first_fir

RE: [PATCH 07/12] percpu: add block level scan_hint

@kvack.org; linux-kernel@vger.kernel.org > Subject: [PATCH 07/12] percpu: add block level scan_hint > > Fragmentation can cause both blocks and chunks to have an early first_firee > bit available, but only able to satisfy allocations much later on. This patch > introduces a scan_hint to

[PATCH 07/12] percpu: add block level scan_hint

Fragmentation can cause both blocks and chunks to have an early first_firee bit available, but only able to satisfy allocations much later on. This patch introduces a scan_hint to help mitigate some unnecessary scanning. The scan_hint remembers the largest area prior to the contig_hint. If the con