TSO(TCP Segmentation Offload)和 UFO(UDP Fragmentation Offload):在 TCP/UDP 协议中直接发送大包;而 TCP 包的分段(按照 MSS 分段)和 UDP 的分片(按照 MTU 分片)功能,由网卡来完成 。 GSO(Generic Segmentation Offload):在网卡不支持 TSO/UFO 时,将 TCP/UDP 包的分段,延迟到进入网卡前再执行。这样,不仅可以...
在互联网服务器上应用于 Internet 服务器的一些比较激进的网络设置。 # Use TCP syncookies when needed net.ipv4.tcp_syncookies = 1 # Enable TCP window scaling net.ipv4.tcp_window_scaling: = 1 # Increase TCP max buffer size net 网络 linux ...
# Increase TCP max buffer size net.core.rmem_max = 16777216 net.core.wmem_max = 16777216 # Increase linux autotuning TCP buffer limits net.ipv4.tcp_rmem = 4096 87380 16777216 net.ipv4.tcp_wmem = 4096 65535 16777216 # Increase number of ports available net.ipv4.ip_local_port_range = 1024...
# Increase kernel buffer size maximums. Currently this seems only necessary at 40Gb speeds. # # The buffer tuning values below do not account for any potential hugepage allocation. # Ensure that you do not oversubscribe system memory. net.ipv4.tcp_rmem="4096 87380 16777216" net.ipv4.tcp_wme...
# Increase Linux autotuning TCP buffer limits net.ipv4.tcp_rmem = 4096 87380 16777216 net.ipv4.tcp_wmem = 4096 65536 16777216 # Increase number of ports available net.ipv4.ip_local_port_range = 1024 65000 将这些设置添加到 /etc/sysctl.conf 的现有内容中。第一个设置启用 TCP SYN cookie。当从...
2. tcp 或udp收发缓冲区最大值 [root@qljt core]# cat /proc/sys/net/core/rmem_max 131071 131071:tcp 或 udp 接收缓冲区最大可设置值的一半。 也就是说调用 setsockopt(s, SOL_SOCKET, SO_RCVBUF, &rcv_size, &optlen); 时rcv_size 如果超过 131071,那么 ...
In such cases, use the perf_mmap_pages parameter to increase the buffer size. The value of the perf_mmap_pages parameter must be a power of 2. If the perf_mmap_pages parameter is not manually set, a default value of 128 is used. Confinement using cgroups The scheduler plugin supports ...
為快速長距離網路啟用Binary Increase Congestion,這樣可以更好地利用以GB速度進行操作的連結,對於WAN通訊應該啟用這個選項。 net.ipv4.tcp_max_tw_buckets 該參數設定系統的TIME_WAIT的數量,如果超過預設值則會被立即清除。tcp_max_tw_buckets預設值大小會受執行個體記憶體的影響,最大值為262144。
The first value is the minimum number of bytes allocated to the socket buffer for receiving data. The second value is the default value, which is overwritten byrmem_default. The buffer size can increase to this value when the system load is not heavy. ...
increase the buffer gconf-editor > apps > totem > buffer-size = 20 | network-buffer-threshold = 20 linode br0 > edit /etc/network/interfaces auto lo iface lo inet loopback auto br0 iface br0 inet dhcp bridge_ports eth0 ...