On 2023/7/4 00:39, Paul E. McKenney wrote:
On Fri, Jun 23, 2023 at 04:29:39PM +1000, Dave Chinner wrote:
On Thu, Jun 22, 2023 at 05:12:02PM +0200, Vlastimil Babka wrote:
On 6/22/23 10:53, Qi Zheng wrote:
@@ -1067,33 +1068,27 @@ static unsigned long shrink_slab(gfp_t gfp_mask, int
nid,
Hi Dave,
On 2023/6/24 19:08, Qi Zheng wrote:
Hi Dave,
On 2023/6/24 06:19, Dave Chinner wrote:
On Fri, Jun 23, 2023 at 09:10:57PM +0800, Qi Zheng wrote:
On 2023/6/23 14:29, Dave Chinner wrote:
On Thu, Jun 22, 2023 at 05:12:02PM +0200, Vlastimil Babka wrote:
On 6/22/23 10:53, Qi Zheng wrote:
On 2023/6/23 14:29, Dave Chinner wrote:
On Thu, Jun 22, 2023 at 05:12:02PM +0200, Vlastimil Babka wrote:
On 6/22/23 10:53, Qi Zheng wrote:
@@ -1067,33 +1068,27 @@ static unsigned long shrink_slab(gfp_t gfp_mask, int
nid,
if (!mem_cgroup_disabled() && !mem_cgroup_is_root(memcg))
On 2023/7/4 11:45, Qi Zheng wrote:
On 2023/7/4 00:39, Paul E. McKenney wrote:
On Fri, Jun 23, 2023 at 04:29:39PM +1000, Dave Chinner wrote:
On Thu, Jun 22, 2023 at 05:12:02PM +0200, Vlastimil Babka wrote:
On 6/22/23 10:53, Qi Zheng wrote:
@@ -1067,33 +1068,27 @@ static unsigned long shrink
On Fri, Jun 23, 2023 at 04:29:39PM +1000, Dave Chinner wrote:
> On Thu, Jun 22, 2023 at 05:12:02PM +0200, Vlastimil Babka wrote:
> > On 6/22/23 10:53, Qi Zheng wrote:
> > > @@ -1067,33 +1068,27 @@ static unsigned long shrink_slab(gfp_t gfp_mask,
> > > int nid,
> > > if (!mem_cgroup_disabled() &&
Hi Dave,
On 2023/6/24 06:19, Dave Chinner wrote:
On Fri, Jun 23, 2023 at 09:10:57PM +0800, Qi Zheng wrote:
On 2023/6/23 14:29, Dave Chinner wrote:
On Thu, Jun 22, 2023 at 05:12:02PM +0200, Vlastimil Babka wrote:
On 6/22/23 10:53, Qi Zheng wrote:
Yes, I suggested the IDR route because radix t
On 2023/6/24 19:08, Qi Zheng wrote:
Hi Dave,
On 2023/6/24 06:19, Dave Chinner wrote:
On Fri, Jun 23, 2023 at 09:10:57PM +0800, Qi Zheng wrote:
On 2023/6/23 14:29, Dave Chinner wrote:
On Thu, Jun 22, 2023 at 05:12:02PM +0200, Vlastimil Babka wrote:
On 6/22/23 10:53, Qi Zheng wrote:
Yes, I
On Fri, Jun 23, 2023 at 09:10:57PM +0800, Qi Zheng wrote:
> On 2023/6/23 14:29, Dave Chinner wrote:
> > On Thu, Jun 22, 2023 at 05:12:02PM +0200, Vlastimil Babka wrote:
> > > On 6/22/23 10:53, Qi Zheng wrote:
> > Yes, I suggested the IDR route because radix tree lookups under RCU
> > with reference
On Thu, Jun 22, 2023 at 05:12:02PM +0200, Vlastimil Babka wrote:
> On 6/22/23 10:53, Qi Zheng wrote:
> > @@ -1067,33 +1068,27 @@ static unsigned long shrink_slab(gfp_t gfp_mask,
> > int nid,
> > if (!mem_cgroup_disabled() && !mem_cgroup_is_root(memcg))
> > return shrink_slab_memcg(
On 6/22/23 10:53, Qi Zheng wrote:
> The shrinker_rwsem is a global read-write lock in
> shrinkers subsystem, which protects most operations
> such as slab shrink, registration and unregistration
> of shrinkers, etc. This can easily cause problems in
> the following cases.
>
> 1) When the memory pr
On 2023/6/22 23:12, Vlastimil Babka wrote:
On 6/22/23 10:53, Qi Zheng wrote:
The shrinker_rwsem is a global read-write lock in
shrinkers subsystem, which protects most operations
such as slab shrink, registration and unregistration
of shrinkers, etc. This can easily cause problems in
the foll
> 2023年6月23日 上午12:42，Qi Zheng 写道：
>
>
>
> On 2023/6/22 23:12, Vlastimil Babka wrote:
>> On 6/22/23 10:53, Qi Zheng wrote:
>>> The shrinker_rwsem is a global read-write lock in
>>> shrinkers subsystem, which protects most operations
>>> such as slab shrink, registration and unregistration
>>> o
The shrinker_rwsem is a global read-write lock in
shrinkers subsystem, which protects most operations
such as slab shrink, registration and unregistration
of shrinkers, etc. This can easily cause problems in
the following cases.
1) When the memory pressure is high and there are many
filesystems
On 2023/6/23 01:41, Alan Huang wrote:
2023年6月23日 上午12:42，Qi Zheng 写道：
On 2023/6/22 23:12, Vlastimil Babka wrote:
On 6/22/23 10:53, Qi Zheng wrote:
The shrinker_rwsem is a global read-write lock in
shrinkers subsystem, which protects most operations
such as slab shrink, registration and
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