The patch titled
Make vm statistics update interval configurable
has been removed from the -mm tree. Its filename was
make-vm-statistics-update-interval-configurable.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: Make vm statistics update interval configurable
From: Christoph Lameter <clameter@xxxxxxx>
Make it configurable. Code in mm makes the vm statistics intervals
independent from the cache reaper use that opportunity to make it
configurable.
Signed-off-by: Christoph Lameter <clameter@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/sysctl.c | 12 ++++++++++++
mm/vmstat.c | 4 +++-
2 files changed, 15 insertions(+), 1 deletion(-)
diff -puN kernel/sysctl.c~make-vm-statistics-update-interval-configurable kernel/sysctl.c
--- a/kernel/sysctl.c~make-vm-statistics-update-interval-configurable
+++ a/kernel/sysctl.c
@@ -77,6 +77,7 @@ extern int sysctl_drop_caches;
extern int percpu_pagelist_fraction;
extern int compat_log;
extern int maps_protect;
+extern int sysctl_stat_interval;
/* this is needed for the proc_dointvec_minmax for [fs_]overflow UID and GID */
static int maxolduid = 65535;
@@ -857,6 +858,17 @@ static ctl_table vm_table[] = {
.extra2 = &one_hundred,
},
#endif
+#ifdef CONFIG_SMP
+ {
+ .ctl_name = CTL_UNNUMBERED,
+ .procname = "stat_interval",
+ .data = &sysctl_stat_interval,
+ .maxlen = sizeof(sysctl_stat_interval),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec_jiffies,
+ .strategy = &sysctl_jiffies,
+ },
+#endif
#if defined(CONFIG_X86_32) || \
(defined(CONFIG_SUPERH) && defined(CONFIG_VSYSCALL))
{
diff -puN mm/vmstat.c~make-vm-statistics-update-interval-configurable mm/vmstat.c
--- a/mm/vmstat.c~make-vm-statistics-update-interval-configurable
+++ a/mm/vmstat.c
@@ -641,11 +641,13 @@ const struct seq_operations vmstat_op =
#ifdef CONFIG_SMP
static DEFINE_PER_CPU(struct delayed_work, vmstat_work);
+int sysctl_stat_interval __read_mostly = HZ;
static void vmstat_update(struct work_struct *w)
{
refresh_cpu_vm_stats(smp_processor_id());
- schedule_delayed_work(&__get_cpu_var(vmstat_work), HZ);
+ schedule_delayed_work(&__get_cpu_var(vmstat_work),
+ sysctl_stat_interval);
}
static void __devinit start_cpu_timer(int cpu)
_
Patches currently in -mm which might be from clameter@xxxxxxx are
origin.patch
slub-support-concurrent-local-and-remote-frees-and-allocs-on-a-slab.patch
quicklist-support-for-ia64.patch
quicklist-support-for-x86_64.patch
slub-exploit-page-mobility-to-increase-allocation-order.patch
slub-mm-only-make-slub-the-default-slab-allocator.patch
slub-reduce-antifrag-max-order.patch
slub-i386-support.patch
define-percpu-smp-cacheline-align-interface.patch
call-percpu-smp-cacheline-algin-interface.patch
remove-constructor-from-buffer_head.patch
mm-implement-swap-prefetching.patch
revoke-core-code.patch
-
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