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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 | ||
| udp.h | ||
| udp_callback.c | ||
| udp_close.c | ||
| udp_conn.c | ||
| udp_devpoll.c | ||
| udp_finddev.c | ||
| udp_input.c | ||
| udp_ioctl.c | ||
| udp_ipselect.c | ||
| udp_netpoll.c | ||
| udp_notifier.c | ||
| udp_recvfrom.c | ||
| udp_send.c | ||
| udp_sendto_buffered.c | ||
| udp_sendto_unbuffered.c | ||
| udp_setsockopt.c | ||
| udp_txdrain.c | ||
| udp_wrbuffer.c | ||
| udp_wrbuffer_dump.c | ||