39 lines
1.3 KiB
Diff
39 lines
1.3 KiB
Diff
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From 8146f220f871c4db77c8363c831784041a5bcf7b Mon Sep 17 00:00:00 2001
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From: Sultan Alsawaf <sultan@kerneltoast.com>
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Date: Sat, 24 Oct 2020 22:17:49 -0700
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Subject: ZEN: INTERACTIVE: mm: Disable proactive compaction by default
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On-demand compaction works fine assuming that you don't have a need to
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spam the page allocator nonstop for large order page allocations.
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Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com>
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---
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init/Kconfig | 1 +
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mm/compaction.c | 4 ++++
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2 files changed, 5 insertions(+)
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--- a/init/Kconfig
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+++ b/init/Kconfig
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@@ -150,6 +150,7 @@ config ZEN_INTERACTIVE
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Background-reclaim hugepages...: no -> yes
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MG-LRU minimum cache TTL.......: 0 -> 1000 ms
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Compact unevictable............: yes -> no
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+ Compaction proactiveness.......: 20 -> 0
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--- EEVDF CPU Scheduler --------------------------------
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--- a/mm/compaction.c
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+++ b/mm/compaction.c
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@@ -1950,7 +1950,11 @@ static int sysctl_compact_unevictable_al
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* aggressively the kernel should compact memory in the
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* background. It takes values in the range [0, 100].
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*/
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+#ifdef CONFIG_ZEN_INTERACTIVE
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+static unsigned int __read_mostly sysctl_compaction_proactiveness;
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+#else
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static unsigned int __read_mostly sysctl_compaction_proactiveness = 20;
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+#endif
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static int sysctl_extfrag_threshold = 500;
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static int __read_mostly sysctl_compact_memory;
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