c6d6fdcc4c
According to the performance team measurements the sched_ tuning should be dropped in several profiles. Resolves: rhbz#1957829 Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
66 lines
2.2 KiB
Text
66 lines
2.2 KiB
Text
#
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# tuned configuration
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#
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[main]
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summary=Broadly applicable tuning that provides excellent performance across a variety of common server workloads
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[variables]
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thunderx_cpuinfo_regex=CPU part\s+:\s+(0x0?516)|(0x0?af)|(0x0?a[0-3])|(0x0?b8)\b
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amd_cpuinfo_regex=model name\s+:.*\bAMD\b
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[cpu]
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governor=performance
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energy_perf_bias=performance
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min_perf_pct=100
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# Marvell ThunderX
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[vm.thunderx]
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type=vm
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uname_regex=aarch64
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cpuinfo_regex=${thunderx_cpuinfo_regex}
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transparent_hugepages=never
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[disk]
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# The default unit for readahead is KiB. This can be adjusted to sectors
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# by specifying the relevant suffix, eg. (readahead => 8192 s). There must
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# be at least one space between the number and suffix (if suffix is specified).
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readahead=>4096
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[sysctl]
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# If a workload mostly uses anonymous memory and it hits this limit, the entire
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# working set is buffered for I/O, and any more write buffering would require
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# swapping, so it's time to throttle writes until I/O can catch up. Workloads
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# that mostly use file mappings may be able to use even higher values.
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#
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# The generator of dirty data starts writeback at this percentage (system default
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# is 20%)
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vm.dirty_ratio = 40
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# Start background writeback (via writeback threads) at this percentage (system
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# default is 10%)
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vm.dirty_background_ratio = 10
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# PID allocation wrap value. When the kernel's next PID value
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# reaches this value, it wraps back to a minimum PID value.
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# PIDs of value pid_max or larger are not allocated.
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#
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# A suggested value for pid_max is 1024 * <# of cpu cores/threads in system>
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# e.g., a box with 32 cpus, the default of 32768 is reasonable, for 64 cpus,
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# 65536, for 4096 cpus, 4194304 (which is the upper limit possible).
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#kernel.pid_max = 65536
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# The swappiness parameter controls the tendency of the kernel to move
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# processes out of physical memory and onto the swap disk.
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# 0 tells the kernel to avoid swapping processes out of physical memory
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# for as long as possible
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# 100 tells the kernel to aggressively swap processes out of physical memory
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# and move them to swap cache
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vm.swappiness=10
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# Marvell ThunderX
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[sysctl.thunderx]
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type=sysctl
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uname_regex=aarch64
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cpuinfo_regex=${thunderx_cpuinfo_regex}
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kernel.numa_balancing=0
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