On 12/1/06, Nick Piggin <[EMAIL PROTECTED]> wrote:
The pattern you are seeing here is probably due to the page allocator
always retrying process context allocations which are <= order 3 (64K
with 4K pages).
You might be able to increase this limit a bit for your system, but it
could easily caus
Aubrey wrote:
On 11/29/06, Nick Piggin <[EMAIL PROTECTED]> wrote:
That was the order-9 allocation failure. Which is not going to be
solved properly by just dropping caches.
But Sonic apparently saw failures with 4K allocations, where the
caches weren't getting shrunk properly. This would be mo
On 11/29/06, Nick Piggin <[EMAIL PROTECTED]> wrote:
That was the order-9 allocation failure. Which is not going to be
solved properly by just dropping caches.
But Sonic apparently saw failures with 4K allocations, where the
caches weren't getting shrunk properly. This would be more interesting
b
Aubrey wrote:
On 11/29/06, Sonic Zhang <[EMAIL PROTECTED]> wrote:
Forward to the mailing list.
> On 11/27/06, Nick Piggin <[EMAIL PROTECTED]> wrote:
>> I haven't actually written any nommu userspace code, but it is obvious
>> that you must try to keep malloc to <= PAGE_SIZE (although order 2
On 11/29/06, Sonic Zhang <[EMAIL PROTECTED]> wrote:
Forward to the mailing list.
> On 11/27/06, Nick Piggin <[EMAIL PROTECTED]> wrote:
>> I haven't actually written any nommu userspace code, but it is obvious
>> that you must try to keep malloc to <= PAGE_SIZE (although order 2 and
>> even 3 a
Forward to the mailing list.
Sonic Zhang wrote:
On 11/27/06, Nick Piggin <[EMAIL PROTECTED]> wrote:
I haven't actually written any nommu userspace code, but it is obvious
that you must try to keep malloc to <= PAGE_SIZE (although order 2 and
even 3 allocations seem to be reasonable, from pro
Aubrey wrote:
On 11/22/06, Peter Zijlstra <[EMAIL PROTECTED]> wrote:
The lack of a MMU on your system makes it very hard not to rely on
higher order allocations, because even user-space allocs need to be
physically contiguous. But please take that into consideration when
writing software.
W
On 11/22/06, Peter Zijlstra <[EMAIL PROTECTED]> wrote:
Yes it does that, but there is no guarantee that those 50MB have a
single 1M contiguous region amongst them.
right ... the testcase posted is more to quickly illustrate the
problem ... the requested size doesnt really matter, what does matt
8 matches
Mail list logo
