Zhe Weng 075eb6a6d2 net/udp: Change conn->readahead to I/O buffer chain ... 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>		2023-07-18 10:51:45 +08:00
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CMakeLists.txt	build: add initial cmake build system	2023-07-08 13:50:48 +08:00
Kconfig	Kconfig: Simplify the conditional default statement	2023-07-16 14:39:20 -03:00
Make.defs
udp_callback.c	net/udp: Change conn->readahead to I/O buffer chain	2023-07-18 10:51:45 +08:00
udp_close.c
udp_conn.c	net/udp: Change conn->readahead to I/O buffer chain	2023-07-18 10:51:45 +08:00
udp_devpoll.c
udp_finddev.c
udp_input.c
udp_ioctl.c	net/udp: Change conn->readahead to I/O buffer chain	2023-07-18 10:51:45 +08:00
udp_ipselect.c
udp_netpoll.c	net/udp: Change conn->readahead to I/O buffer chain	2023-07-18 10:51:45 +08:00
udp_notifier.c	net/udp: Change conn->readahead to I/O buffer chain	2023-07-18 10:51:45 +08:00
udp_recvfrom.c	net/udp: Change conn->readahead to I/O buffer chain	2023-07-18 10:51:45 +08:00
udp_send.c
udp_sendto_buffered.c
udp_sendto_unbuffered.c
udp_setsockopt.c
udp_txdrain.c
udp_wrbuffer_dump.c
udp_wrbuffer.c
udp.h	net/udp: Change conn->readahead to I/O buffer chain	2023-07-18 10:51:45 +08:00