2012/8/8 Jianpeng Ma :
> On 2012-08-08 11:06 Shaohua Li Wrote:
>>2012/8/8 Jianpeng Ma :
>>> I think there are three problems about handling plug in blk_queue_bio():
>>> 1:if request_count >= BLK_MAX_REQUEST_COUNT, avoid unnecessary
>>> plug->should_sort judge.
>>this makes sense, though not a
2012/8/8 Jianpeng Ma majianp...@gmail.com:
On 2012-08-08 11:06 Shaohua Li s...@kernel.org Wrote:
2012/8/8 Jianpeng Ma majianp...@gmail.com:
I think there are three problems about handling plug in blk_queue_bio():
1:if request_count = BLK_MAX_REQUEST_COUNT, avoid unnecessary
plug-should_sort
On 2012-08-08 11:06 Shaohua Li Wrote:
>2012/8/8 Jianpeng Ma :
>> I think there are three problems about handling plug in blk_queue_bio():
>> 1:if request_count >= BLK_MAX_REQUEST_COUNT, avoid unnecessary
>> plug->should_sort judge.
>this makes sense, though not a big deal, nice to fix it.
Thanks
2012/8/8 Jianpeng Ma :
> I think there are three problems about handling plug in blk_queue_bio():
> 1:if request_count >= BLK_MAX_REQUEST_COUNT, avoid unnecessary
> plug->should_sort judge.
this makes sense, though not a big deal, nice to fix it.
> 2:Only two device can trace plug.
I didn't get
I think there are three problems about handling plug in blk_queue_bio():
1:if request_count >= BLK_MAX_REQUEST_COUNT, avoid unnecessary
plug->should_sort judge.
2:Only two device can trace plug.
3:When exec blk_flush_plug_list,it use list_sort which has
O(nlog(n)) complexity. When insert and
I think there are three problems about handling plug in blk_queue_bio():
1:if request_count = BLK_MAX_REQUEST_COUNT, avoid unnecessary
plug-should_sort judge.
2:Only two device can trace plug.
3:When exec blk_flush_plug_list,it use list_sort which has
O(nlog(n)) complexity. When insert and sort,
2012/8/8 Jianpeng Ma majianp...@gmail.com:
I think there are three problems about handling plug in blk_queue_bio():
1:if request_count = BLK_MAX_REQUEST_COUNT, avoid unnecessary
plug-should_sort judge.
this makes sense, though not a big deal, nice to fix it.
2:Only two device can trace plug.
On 2012-08-08 11:06 Shaohua Li s...@kernel.org Wrote:
2012/8/8 Jianpeng Ma majianp...@gmail.com:
I think there are three problems about handling plug in blk_queue_bio():
1:if request_count = BLK_MAX_REQUEST_COUNT, avoid unnecessary
plug-should_sort judge.
this makes sense, though not a big
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