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kernel: tune e1000e module parameters

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The default e1000e parameters (interrupt throttling rate, MSI/MSI-X
mode) are optimized for desktop and server computers to optimize
user-space execution (i.e. what's typically referred to as "useful"
work).  This assumption breaks on a router under load where most of
the "useful" work actually takes place either in hardware interrupt
handlers (IRQ) or at software IRQ (swirq) modes, so we try to reflect
that by overriding these parameters with more appropriate values.

Patch-by: Philip Prindeville <philipp@redfish-solutions.com>
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
This commit is contained in:
Jo-Philipp Wich 2017-08-24 00:17:56 +02:00 committed by Hauke Mehrtens
parent f96085b35d
commit ea5d9f5f72
1 changed files with 3 additions and 0 deletions
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3
package/kernel/linux/modules/netdevices.mk
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@ -488,6 +488,9 @@ define KernelPackage/e1000e
KCONFIG:=CONFIG_E1000E
FILES:=$(LINUX_DIR)/drivers/net/ethernet/intel/e1000e/e1000e.ko
AUTOLOAD:=$(call AutoProbe,e1000e)
MODPARAMS.e1000e:= \
IntMode=1 \
InterruptThrottleRate=4,4,4,4,4,4,4,4
endef
define KernelPackage/e1000e/description