8734eab6ac
Make calls using IPCs IRQ safe, handle packet exhaustion, removed 'Packet_pool', tweak TCP rmem and wmem buffer sizes to show better performance results, use 'Net::Packet_allocator, fix 'update-patch' Makefile command
20 lines
700 B
Diff
20 lines
700 B
Diff
Index: net/ipv4/tcp.c
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===================================================================
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--- net/ipv4/tcp.c (revision 23)
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+++ net/ipv4/tcp.c (working copy)
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@@ -3285,8 +3285,13 @@
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/* Set per-socket limits to no more than 1/128 the pressure threshold */
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limit = ((unsigned long)sysctl_tcp_mem[1]) << (PAGE_SHIFT - 7);
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- max_share = min(4UL*1024*1024, limit);
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+ /*
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+ * Adjust limit so it performs well on systems with little memory. If
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+ * this causes errors increase L4Linux main memory
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+ */
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+ max_share = min(4UL*1024*1024, limit < 768U * 1024 ? 768U * 1024 : limit);
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+
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sysctl_tcp_wmem[0] = SK_MEM_QUANTUM;
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sysctl_tcp_wmem[1] = 16*1024;
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sysctl_tcp_wmem[2] = max(64*1024, max_share);
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