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parisc: Default to 4 SMP CPUs

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I haven't seen any real SMP machine yet with > 4 CPUs (we don't suport
SuperDomes yet), so reducing the default maximum number of CPUs may speed up
various bitop functions which depend on number of CPUs in the system.

bload-o-meter on a typical 64-bit kernel shows:

Data: add/remove: 0/0 grow/shrink: 0/10 up/down: 0/-3724 (-3724)
Total: Before=1910404, After=1906680, chg -0.19%

Code: add/remove: 0/2 grow/shrink: 42/38 up/down: 2320/-3500 (-1180)
Total: Before=11053099, After=11051919, chg -0.01%

Signed-off-by: Helge Deller <deller@gmx.de>
This commit is contained in:
Helge Deller 2018-06-15 22:38:22 +02:00
parent 5e791d2e47
commit 435d34c7a4
1 changed files with 1 additions and 1 deletions
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2
arch/parisc/Kconfig
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@ -347,7 +347,7 @@ config NR_CPUS
int "Maximum number of CPUs (2-32)"
range 2 32
depends on SMP
default "32"
default "4"
endmenu