From: Lucas Stach <l.stach@pengutronix.de>
To: distrokit@pengutronix.de
Subject: [DistroKit] [PATCH v6 9/9] v7a: kernel: set PCP_BATCH_SCALE_MAX to 3
Date: Tue, 19 May 2026 18:21:49 +0200 [thread overview]
Message-ID: <20260519162149.2993161-9-l.stach@pengutronix.de> (raw)
In-Reply-To: <20260519162149.2993161-1-l.stach@pengutronix.de>
While larger values can increase throughput of the per-CPU slab
caches, they generally will lead to unacceptable IRQ disabled
times on wimpy ARM CPUs.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
---
v6: new patch
---
configs/platform-v7a/kernelconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/configs/platform-v7a/kernelconfig b/configs/platform-v7a/kernelconfig
index 26edf6cc45ef..3a5f578dca15 100644
--- a/configs/platform-v7a/kernelconfig
+++ b/configs/platform-v7a/kernelconfig
@@ -930,7 +930,7 @@ CONFIG_COMPACT_UNEVICTABLE_DEFAULT=1
# CONFIG_PAGE_REPORTING is not set
CONFIG_MIGRATION=y
CONFIG_CONTIG_ALLOC=y
-CONFIG_PCP_BATCH_SCALE_MAX=5
+CONFIG_PCP_BATCH_SCALE_MAX=3
CONFIG_BOUNCE=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=32768
--
2.47.3
prev parent reply other threads:[~2026-05-19 16:21 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-19 16:21 [DistroKit] [PATCH v6 1/9] x86_64: kernel: disable rust Lucas Stach
2026-05-19 16:21 ` [DistroKit] [PATCH v6 2/9] v8a: " Lucas Stach
2026-05-19 16:21 ` [DistroKit] [PATCH v6 3/9] v7a: " Lucas Stach
2026-05-19 16:21 ` [DistroKit] [PATCH v6 4/9] x86_64: kernel: update config Lucas Stach
2026-05-19 16:21 ` [DistroKit] [PATCH v6 5/9] platform-x86_64: switch to ZSTD kernel compression Lucas Stach
2026-05-19 16:21 ` [DistroKit] [PATCH v6 6/9] reason: allow kernel initrd support for all platforms Lucas Stach
2026-05-19 16:21 ` [DistroKit] [PATCH v6 7/9] v8a: kernel: update config Lucas Stach
2026-05-19 16:21 ` [DistroKit] [PATCH v6 8/9] v7a: kernel: disable INITRAMFS_PRESERVE_MTIME Lucas Stach
2026-05-19 16:21 ` Lucas Stach [this message]
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