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13–Configuración de NVMe-oF con RDMA
Optimización del rendimiento
done
done
Frecuencia de la CPU (cpufreq.sh)
El script siguiente establece la frecuencia de la CPU.
#Usage "./nameofscript.sh"
grep -E '^model name|^cpu MHz' /proc/cpuinfo
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
for CPUFREQ in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor; do [ -f
$CPUFREQ ] || continue; echo -n performance > $CPUFREQ; done
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
Para configurar los parámetros de red o memoria:
sysctl -w net.ipv4.tcp_mem="16777216 16777216 16777216"
sysctl -w net.ipv4.tcp_wmem="4096 65536 16777216"
sysctl -w net.ipv4.tcp_rmem="4096 87380 16777216"
sysctl -w net.core.wmem_max=16777216
sysctl -w net.core.rmem_max=16777216
sysctl -w net.core.wmem_default=16777216
sysctl -w net.core.rmem_default=16777216
sysctl -w net.core.optmem_max=16777216
sysctl -w net.ipv4.tcp_low_latency=1
sysctl -w net.ipv4.tcp_timestamps=0
sysctl -w net.ipv4.tcp_sack=1
sysctl -w net.ipv4.tcp_window_scaling=0
sysctl -w net.ipv4.tcp_adv_win_scale=1
# echo 0 > /sys/block/nvme0n1/queue/add_random
# echo 2 > /sys/block/nvme0n1/queue/nomerges
NOTA
Los comandos siguientes solo se aplican al servidor iniciador.
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