On Sun, 04 Jan 2015 17:38:06 +0100
Arnd Bergmann wrote:
> On Saturday 03 January 2015 18:59:46 Sergey Dyasly wrote:
> > Hi Arnd,
> >
> > First, some background information. We originally encountered high
> > fragmentation
> > issue in vmalloc area:
> >
> > 1. Total size of vmalloc area
On Sun, 04 Jan 2015 17:38:06 +0100
Arnd Bergmann a...@arndb.de wrote:
On Saturday 03 January 2015 18:59:46 Sergey Dyasly wrote:
Hi Arnd,
First, some background information. We originally encountered high
fragmentation
issue in vmalloc area:
1. Total size of vmalloc area was
On Saturday 03 January 2015 18:59:46 Sergey Dyasly wrote:
> Hi Arnd,
>
> First, some background information. We originally encountered high
> fragmentation
> issue in vmalloc area:
>
> 1. Total size of vmalloc area was 400 MB.
> 2. 200 MB of vmalloc area was consumed by ioremaps of
On Saturday 03 January 2015 18:59:46 Sergey Dyasly wrote:
Hi Arnd,
First, some background information. We originally encountered high
fragmentation
issue in vmalloc area:
1. Total size of vmalloc area was 400 MB.
2. 200 MB of vmalloc area was consumed by ioremaps of various
Hi Arnd,
First, some background information. We originally encountered high fragmentation
issue in vmalloc area:
1. Total size of vmalloc area was 400 MB.
2. 200 MB of vmalloc area was consumed by ioremaps of various sizes.
3. Largest contiguous chunk of vmalloc area was
Hi Arnd,
First, some background information. We originally encountered high fragmentation
issue in vmalloc area:
1. Total size of vmalloc area was 400 MB.
2. 200 MB of vmalloc area was consumed by ioremaps of various sizes.
3. Largest contiguous chunk of vmalloc area was
On Tuesday 23 December 2014 13:00:13 Dmitry Safonov wrote:
> ioremap uses __get_vm_area_node which sets alignment to fls of requested size.
> I couldn't find any reason for such big align. Does it decrease TLB misses?
> I tested it on custom ARM board with 200+ Mb of ioremap and it works.
> What
On Tuesday 23 December 2014 13:00:13 Dmitry Safonov wrote:
ioremap uses __get_vm_area_node which sets alignment to fls of requested size.
I couldn't find any reason for such big align. Does it decrease TLB misses?
I tested it on custom ARM board with 200+ Mb of ioremap and it works.
What am I
ioremap uses __get_vm_area_node which sets alignment to fls of requested size.
I couldn't find any reason for such big align. Does it decrease TLB misses?
I tested it on custom ARM board with 200+ Mb of ioremap and it works.
What am I missing?
Alignment restriction for ioremap region was
ioremap uses __get_vm_area_node which sets alignment to fls of requested size.
I couldn't find any reason for such big align. Does it decrease TLB misses?
I tested it on custom ARM board with 200+ Mb of ioremap and it works.
What am I missing?
Alignment restriction for ioremap region was
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