On Mon, 18 Feb 2008 10:58:40 +0900 (JST)
[EMAIL PROTECTED] (YAMAMOTO Takashi) wrote:
+ /*
+* For lazy freeing (not GC)
+*/
+ struct {
+ struct mem_cgroup_per_zone *mz;
+ int num;
+#define GARBAGE_MAXSIZE(16)
+
+ /*
+ * For lazy freeing (not GC)
+ */
+ struct {
+ struct mem_cgroup_per_zone *mz;
+ int num;
+#define GARBAGE_MAXSIZE (16)
+ struct page_cgroup *vec[GARBAGE_MAXSIZE];
+ } garbage[NR_CPUS];
KAMEZAWA Hiroyuki wrote:
A big lock contetion of memory controller is mz-lru_lock.
This is acquired when
1. add to lru
2. remove from lru
3. scan lru list
It seems 1. and 3. are unavoidable. but 2. can be delayed.
This patch make removing page_cgorup from lru-list be lazy and
On Mon, 18 Feb 2008 10:05:16 +0530
Balbir Singh [EMAIL PROTECTED] wrote:
Hi, KAMEZAWA-San,
For this and the next patch, do you know if there is a performance
improvement?
Have we measured it. The complexity of the code seems to be high, want to make
sure it is worth it.
I'd like to make
