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+<file>
+# 256 KB default performs well experimentally, and is often recommended by ISVs.
+net.core.rmem_default = 262144
+net.core.wmem_default = 262144
+# When opening a high-bandwidth connection while the receiving end is under
+# memory pressure, disk I/O may be necessary to free memory for the socket,
+# making disk latency the effective latency for the bandwidth-delay product
+# initially.  For 10 Gb ethernet and SCSI, the BDP is about 5 MB.  Allow 8 MB
+# to account for overhead, to ensure that new sockets can saturate the medium
+# quickly.
+net.core.rmem_max = 8388608
+net.core.wmem_max = 8388608
+# Allow a deep backlog for 10 Gb and bonded Gb ethernet connections
+net.core.netdev_max_backlog = 10000
+# Always have one page available, plus an extra for overhead, to ensure TCP NFS
+# pageout doesn't stall under memory pressure.  Default to max unscaled window,
+# plus overhead for rmem, since most LAN sockets won't need to scale.
+net.ipv4.tcp_rmem = 8192 87380 8388608
+net.ipv4.tcp_wmem = 8192 65536 8388608
+# Always have enough memory available on a UDP socket for an 8k NFS request,
+# plus overhead, to prevent NFS stalling under memory pressure.  16k is still
+# low enough that memory fragmentation is unlikely to cause problems.
+net.ipv4.udp_rmem_min = 16384
+net.ipv4.udp_wmem_min = 16384
+# Ensure there's enough memory to actually allocate those massive buffers to a
+# socket.
+net.ipv4.tcp_mem = 8388608 12582912 16777216
+net.ipv4.udp_mem = 8388608 12582912 16777216
+</file>