c24e2ea0ca
Added new tuned-adm functionality 'profile_info'. It has optional parameter 'profile_name'. If called without parameter, active profile is used. It outputs name of the profile it is querying, profile summary, and profile description. If there is no profile summary or description available it outputs empty string(s). Extended tuned-adm 'list' functionality. It now displays profile summary in the list (if available). Added summary to profiles. Extended D-Bus API to support the new feature and for better Cockpit support: - Added 'profile_info' method. It gets profile_name argument and it queries the requested profile for information. If profile_name is empty string it queries the active/selected profile. It returns tuple of the following format (status, profile_name, summary, description), where status is boolean. If it is False, the query mechanism failed and the other fields don't contain valid data - Added 'profiles2' method. It's extension of 'profiles' method. It returns list of tuples. Tuples have following format: (profile_name, profile_summary) Related: rhbz#1228356 Fixes: #46 Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
45 lines
1.5 KiB
Text
45 lines
1.5 KiB
Text
#
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# tuned configuration
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#
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[main]
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summary=Optimize for deterministic performance at the cost of increased power consumption
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[cpu]
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force_latency=1
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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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[sysctl]
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# ktune sysctl settings for rhel6 servers, maximizing i/o throughput
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#
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# Minimal preemption granularity for CPU-bound tasks:
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# (default: 1 msec# (1 + ilog(ncpus)), units: nanoseconds)
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kernel.sched_min_granularity_ns=10000000
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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=10
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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=3
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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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# The total time the scheduler will consider a migrated process
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# "cache hot" and thus less likely to be re-migrated
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# (system default is 500000, i.e. 0.5 ms)
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kernel.sched_migration_cost_ns=5000000
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