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handle sysctl tunable dict

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This commit is contained in:
Josh Lay 2024-03-24 18:55:50 -05:00
parent 1a72de4828
commit 3d2a88c12b
Signed by: jlay
GPG key ID: B265E45CACAD108A
2 changed files with 18 additions and 24 deletions
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host_vars/localhost.yml
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@ -26,3 +26,16 @@ gpu_mv_offset: "+125" # add 125mV or 0.125V
# gpu_mv_offset: "+50" # add 50mV or 0.05V
# gpu_mv_offset: "+75" # add 75mV or 0.075V
# '-50' undervolts GPU core voltage 50mV or 0.05V; untested - here be dragons/instability
# optional kernel parameters to set as well
sysctl: # quote ints/cast to string to avoid surprises
kernel.dmesg_restrict: '0' # allow regular users to see the kernel ring buffer
net.core.default_qdisc: fq # congestion control
net.ipv4.tcp_congestion_control: bbr2 # cong. control part 2
net.core.rmem_max: '33554432'
net.core.wmem_max: '33554432'
dev.raid.speed_limit_min: '2000000'
dev.raid.speed_limit_max: '6000000'
vm.compaction_proactiveness: '30' # improve THP allocation latency, compact in background
vm.page_lock_unfairness: '1' # make page lock theft slightly more fair
vm.max_map_count: '1048576' # allow some games to run (eg: DayZ)