95a914f631
Currently, the per-queue limit is a function of the receive buffer size and the MSS. In certain cases (such as connections with large receive buffers), the per-queue segment limit can be quite large. Because we process segments as a linked list, large queues may not perform acceptably. The better long-term solution is to make the queue more efficient. But, in the short-term, we can provide a way for a system administrator to set the maximum queue size. We set the default queue limit to 100. This is an effort to balance performance with a sane resource limit. Depending on their environment, goals, etc., an administrator may choose to modify this limit in either direction. Reviewed by: jhb Approved by: so Security: FreeBSD-SA-18:08.tcp Security: CVE-2018-6922 |
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