Changelog since V10
o Important - All allocation types now use per-cpu caches like the standard
allocator. Older versions may have trouble with large numbers of processors
Do you have a new set of benchmarks we could see? The ones you had for
v10 were pretty useful.
o Removed all the additional buddy allocator statistic code
Is there a separate patch for the statistic code or is it no longer
being maintained?
+/*
+ * Shared per-cpu lists would cause fragmentation over time
+ * The pcpu_list is to keep kernel and userrclm allocations
+ * apart while still allowing all allocation types to have
+ * per-cpu lists
+ */
Why are kernel nonreclaimable and kernel reclaimable joined here? I'm
not saying you are wrong, I'm just ignorant and need some education.
+struct pcpu_list {
+ int count;
+ struct list_head list;
+} ____cacheline_aligned_in_smp;
+
struct per_cpu_pages {
- int count; /* number of pages in the list */
+ struct pcpu_list pcpu_list[2]; /* 0: kernel 1: user */
int low; /* low watermark, refill needed */
int high; /* high watermark, emptying needed */
int batch; /* chunk size for buddy add/remove */
- struct list_head list; /* the list of pages */
};
Instead of defining 0 and 1 in a comment why not use a #define?
> + pcp->pcpu_list[0].count = 0;
> + pcp->pcpu_list[1].count = 0;
The #define would make code like this look more readable.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
