On 03/24/2017 02:56 PM, Dave Hansen wrote:
> On 03/24/2017 12:33 AM, John Hubbard wrote:
>> There might be some additional information you are using to come up with
>> that conclusion, that is not obvious to me. Any thoughts there? These
>> calls use the same underlying page allocator (and I though
Michal Hocko writes:
> On Sat 01-04-17 12:47:56, Huang, Ying wrote:
>> Hi, Michal,
>>
>> Michal Hocko writes:
>>
>> > On Fri 24-03-17 06:56:10, Dave Hansen wrote:
>> >> On 03/24/2017 12:33 AM, John Hubbard wrote:
>> >> > There might be some additional information you are using to come up with
On Sat 01-04-17 12:47:56, Huang, Ying wrote:
> Hi, Michal,
>
> Michal Hocko writes:
>
> > On Fri 24-03-17 06:56:10, Dave Hansen wrote:
> >> On 03/24/2017 12:33 AM, John Hubbard wrote:
> >> > There might be some additional information you are using to come up with
> >> > that conclusion, that is
Hi, Michal,
Michal Hocko writes:
> On Fri 24-03-17 06:56:10, Dave Hansen wrote:
>> On 03/24/2017 12:33 AM, John Hubbard wrote:
>> > There might be some additional information you are using to come up with
>> > that conclusion, that is not obvious to me. Any thoughts there? These
>> > calls use t
On Fri 24-03-17 06:56:10, Dave Hansen wrote:
> On 03/24/2017 12:33 AM, John Hubbard wrote:
> > There might be some additional information you are using to come up with
> > that conclusion, that is not obvious to me. Any thoughts there? These
> > calls use the same underlying page allocator (and I t
On 03/24/2017 09:52 AM, Tim Chen wrote:
On Fri, 2017-03-24 at 06:56 -0700, Dave Hansen wrote:
On 03/24/2017 12:33 AM, John Hubbard wrote:
There might be some additional information you are using to come up with
that conclusion, that is not obvious to me. Any thoughts there? These
calls use the
On Fri, 2017-03-24 at 06:56 -0700, Dave Hansen wrote:
> On 03/24/2017 12:33 AM, John Hubbard wrote:
> >
> > There might be some additional information you are using to come up with
> > that conclusion, that is not obvious to me. Any thoughts there? These
> > calls use the same underlying page allo
On 03/24/2017 12:33 AM, John Hubbard wrote:
> There might be some additional information you are using to come up with
> that conclusion, that is not obvious to me. Any thoughts there? These
> calls use the same underlying page allocator (and I thought that both
> were subject to the same constrain
[...]
Hi Ying,
I'm a little surprised to see vmalloc calls replaced with
kmalloc-then-vmalloc calls, because that actually makes fragmentation
worse (contrary to the above claim). That's because you will consume
contiguous memory (even though you don't need it to be contiguous),
whereas before,
John Hubbard writes:
> On 03/23/2017 09:52 PM, Huang, Ying wrote:
>> John Hubbard writes:
>>
>>> On 03/23/2017 07:41 PM, Huang, Ying wrote:
David Rientjes writes:
> On Mon, 20 Mar 2017, Huang, Ying wrote:
>
>> From: Huang Ying
>>
>> Now vzalloc() is used in swap c
On 03/23/2017 09:52 PM, Huang, Ying wrote:
John Hubbard writes:
On 03/23/2017 07:41 PM, Huang, Ying wrote:
David Rientjes writes:
On Mon, 20 Mar 2017, Huang, Ying wrote:
From: Huang Ying
Now vzalloc() is used in swap code to allocate various data
structures, such as swap cache, swap sl
John Hubbard writes:
> On 03/23/2017 07:41 PM, Huang, Ying wrote:
>> David Rientjes writes:
>>
>>> On Mon, 20 Mar 2017, Huang, Ying wrote:
>>>
From: Huang Ying
Now vzalloc() is used in swap code to allocate various data
structures, such as swap cache, swap slots cache, clust
On 03/23/2017 07:41 PM, Huang, Ying wrote:
David Rientjes writes:
On Mon, 20 Mar 2017, Huang, Ying wrote:
From: Huang Ying
Now vzalloc() is used in swap code to allocate various data
structures, such as swap cache, swap slots cache, cluster info, etc.
Because the size may be too large on s
David Rientjes writes:
> On Mon, 20 Mar 2017, Huang, Ying wrote:
>
>> From: Huang Ying
>>
>> Now vzalloc() is used in swap code to allocate various data
>> structures, such as swap cache, swap slots cache, cluster info, etc.
>> Because the size may be too large on some system, so that normal
>>
On Mon, 20 Mar 2017, Huang, Ying wrote:
> From: Huang Ying
>
> Now vzalloc() is used in swap code to allocate various data
> structures, such as swap cache, swap slots cache, cluster info, etc.
> Because the size may be too large on some system, so that normal
> kzalloc() may fail. But using kz
From: Huang Ying
Now vzalloc() is used in swap code to allocate various data
structures, such as swap cache, swap slots cache, cluster info, etc.
Because the size may be too large on some system, so that normal
kzalloc() may fail. But using kzalloc() has some advantages, for
example, less memory
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