075eb6a6d2
When using IOB queue to store readahead data, we use one IOB for each UDP packet. Then if the packets are very small, like 10Bytes per packet, we'll use ~1600 IOBs just for 16KB recv buffer size, which is wasteful and dangerous. So change conn->readahead to a single IOB chain like TCP. Benefits: - Using memory and IOBs more efficiently (small packets are common in UDP) Side effects: - UDP recv buffer size may count the overhead - A little bit drop in performance (<1%, more seek & copy) Signed-off-by: Zhe Weng <wengzhe@xiaomi.com> |
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| .. | ||
| CMakeLists.txt | ||
| Kconfig | ||
| Make.defs | ||
| tcp_accept.c | ||
| tcp_appsend.c | ||
| tcp_backlog.c | ||
| tcp_callback.c | ||
| tcp_cc.c | ||
| tcp_close.c | ||
| tcp_conn.c | ||
| tcp_connect.c | ||
| tcp_devpoll.c | ||
| tcp_dump.c | ||
| tcp_finddev.c | ||
| tcp_getsockopt.c | ||
| tcp_input.c | ||
| tcp_ioctl.c | ||
| tcp_ipselect.c | ||
| tcp_listen.c | ||
| tcp_monitor.c | ||
| tcp_netpoll.c | ||
| tcp_notifier.c | ||
| tcp_recvfrom.c | ||
| tcp_recvwindow.c | ||
| tcp_send_buffered.c | ||
| tcp_send_unbuffered.c | ||
| tcp_send.c | ||
| tcp_sendfile.c | ||
| tcp_seqno.c | ||
| tcp_setsockopt.c | ||
| tcp_shutdown.c | ||
| tcp_timer.c | ||
| tcp_txdrain.c | ||
| tcp_wrbuffer.c | ||
| tcp.h | ||