# Kernel sysctl configuration file
#
# For binary values, 0 is disabled, 1 is enabled.  See sysctl(8) and
# sysctl.conf(5) for more details.

# Controls the use of TCP syncookies
net.ipv4.tcp_syncookies = 1

# Do not spend as much process time too early to write out dirty pages
vm.dirty_ratio = 40

# Increase the average time a process runs continuously and also improve the
# cache utilization and server style workload throughput at minor latency cost
kernel.sched_min_granularity_ns = 10000000
kernel.sched_wakeup_granularity_ns = 15000000
kernel.sched_tunable_scaling = 0
kernel.sched_latency_ns = 80000000

# Controls the maximum shared segment size, in bytes
kernel.shmmax = 4294967295

# Controls the maximum number of shared memory segments, in pages
kernel.shmall = 268435456