ad934da6f1
Several users reported stutters in gameplay with v2 which was resolved after restoring the default value of the timer frequency (also known as the tick rate). Some users noticed improvments with 300Hz, but there weren't any noticeable improvmenets with higher tick rate values like 600Hz. So, sticking to 300Hz for now. Signed-off-by: alternoegraha <noegrahachan@gmail.com>
64 lines
1.7 KiB
Plaintext
64 lines
1.7 KiB
Plaintext
#
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# Timer Interrupt Frequency Configuration
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#
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choice
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prompt "Timer frequency"
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default HZ_300
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help
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Allows the configuration of the timer frequency. It is customary
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to have the timer interrupt run at 1000 Hz but 100 Hz may be more
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beneficial for servers and NUMA systems that do not need to have
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a fast response for user interaction and that may experience bus
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contention and cacheline bounces as a result of timer interrupts.
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Note that the timer interrupt occurs on each processor in an SMP
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environment leading to NR_CPUS * HZ number of timer interrupts
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per second.
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config HZ_50
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bool "50 HZ"
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help
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Experimental.
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config HZ_100
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bool "100 HZ"
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help
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100 Hz is a typical choice for servers, SMP and NUMA systems
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with lots of processors that may show reduced performance if
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too many timer interrupts are occurring.
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config HZ_250
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bool "250 HZ"
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help
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250 Hz is a good compromise choice allowing server performance
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while also showing good interactive responsiveness even
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on SMP and NUMA systems. If you are going to be using NTSC video
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or multimedia, selected 300Hz instead.
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config HZ_300
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bool "300 HZ"
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help
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300 Hz is a good compromise choice allowing server performance
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while also showing good interactive responsiveness even
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on SMP and NUMA systems and exactly dividing by both PAL and
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NTSC frame rates for video and multimedia work.
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config HZ_1000
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bool "1000 HZ"
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help
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1000 Hz is the preferred choice for desktop systems and other
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systems requiring fast interactive responses to events.
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endchoice
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config HZ
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int
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default 50 if HZ_50
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default 100 if HZ_100
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default 250 if HZ_250
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default 300 if HZ_300
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default 1000 if HZ_1000
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config SCHED_HRTICK
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def_bool HIGH_RES_TIMERS
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