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freebsd-dev/sys
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Steven Hartland e44c1887fd Use estimated RTT for receive buffer auto resizing instead of timestamps 
Switched from using timestamps to RTT estimates when performing TCP receive
buffer auto resizing, as not all hosts support / enable TCP timestamps.

Disabled reset of receive buffer auto scaling when not in bulk receive mode,
which gives an extra 20% performance increase.

Also extracted auto resizing to a common method shared between standard and
fastpath modules.

With this AWS S3 downloads at ~17ms latency on a 1Gbps connection jump from
~3MB/s to ~100MB/s using the default settings.

Reviewed by:    lstewart, gnn
MFC after:      2 weeks
Relnotes:       Yes
Sponsored by:   Multiplay
Differential Revision:  https://reviews.freebsd.org/D9668
2017-04-10 08:19:35 +00:00
..
amd64 Corrected misspelled versions of rendezvous. 2017-04-09 02:00:03 +00:00
arm Add support for imx6ul soc. 2017-04-10 02:46:39 +00:00
arm64 Corrected misspelled versions of rendezvous. 2017-04-09 02:00:03 +00:00
boot loader: r316585 did miss userboot update 2017-04-09 11:16:16 +00:00
bsm Merge OpenBSM 1.2-alpha5 from vendor branch to FreeBSD -CURRENT: 2017-03-26 21:14:49 +00:00
cam Fix few minor issues found by Clang Analyzer. 2017-04-09 07:54:39 +00:00
cddl Corrected misspelled versions of rendezvous. 2017-04-09 02:00:03 +00:00
compat Import CK as of commit 6b141c0bdd21ce8b3e14147af8f87f22b20ecf32 2017-04-09 21:02:05 +00:00
conf Revert previous change to sys/conf/options & associated notes so builds can 2017-04-07 21:06:50 +00:00
contrib Import CK as of commit 6b141c0bdd21ce8b3e14147af8f87f22b20ecf32 2017-04-09 21:02:05 +00:00
crypto Implement boot-time encryption key passing (keybuf) 2017-04-01 05:05:22 +00:00
ddb Fix printing of negative offsets (typically from frame pointers) again. 2017-03-26 18:46:35 +00:00
dev Special rendering methods for removing mouse cursors cannot be removed 2017-04-10 06:19:09 +00:00
fs Avoid starvation of the server crash recovery thread for the NFSv4 client. 2017-04-10 01:28:01 +00:00
gdb
geom Implement boot-time encryption key passing (keybuf) 2017-04-01 05:05:22 +00:00
gnu Update our device tree files to a Linux 4.10 2017-03-07 13:56:49 +00:00
i386 Corrected misspelled versions of rendezvous. 2017-04-09 02:00:03 +00:00
isa Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
kern Corrected misspelled versions of rendezvous. 2017-04-09 02:00:03 +00:00
kgssapi
libkern Use inline asm instead of unportable intrinsics for the SSE4 crc32 2017-03-26 10:31:48 +00:00
mips Corrected misspelled versions of rendezvous. 2017-04-09 02:00:03 +00:00
modules Remove the last vestiges of FDC_DEBUG & FD_DEBUG 2017-04-07 16:14:25 +00:00
net Fixed typo in comment found while reading commit email for fix of 2017-04-08 04:50:50 +00:00
net80211 [net80211] refactor out the A-MPDU dispatch routine. 2017-04-06 01:35:42 +00:00
netgraph mppc - Finish pluging NETGRAPH_MPPC_COMPRESSION. 2017-01-20 00:02:11 +00:00
netinet Use estimated RTT for receive buffer auto resizing instead of timestamps 2017-04-10 08:19:35 +00:00
netinet6 Allow explicitly assigned IPv6 loopback address to be used in jails 2017-03-31 09:10:05 +00:00
netipsec When we are doing SA lookup for TCP-MD5, check both source and 2017-04-04 13:41:50 +00:00
netnatm
netpfil Remove "IPFW static rules" rmlock. 2017-04-03 13:35:04 +00:00
netsmb
nfs Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
nfsclient Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
nfsserver Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
nlm
ofed Add full VNET support to the inet_get_local_port_range() function in 2017-03-22 15:46:31 +00:00
opencrypto Don't leak a session and lock if a GMAC key has an invalid length. 2017-04-05 01:46:41 +00:00
powerpc Corrected misspelled versions of rendezvous. 2017-04-09 02:00:03 +00:00
riscv Corrected misspelled versions of rendezvous. 2017-04-09 02:00:03 +00:00
rpc Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
security Break audit_bsm_klib.c into two files: one (audit_bsm_klib.c) 2017-04-03 10:15:58 +00:00
sparc64 Corrected misspelled versions of rendezvous. 2017-04-09 02:00:03 +00:00
sys Corrected misspelled versions of rendezvous. 2017-04-09 02:00:03 +00:00
teken Oops, my fix for bright colors broke bright black some more (in cases 2017-03-27 10:48:28 +00:00
tests
tools [fdt] Make DTBs generated by make_dtb.sh overlay-ready 2017-03-10 22:45:07 +00:00
ufs ufs: Export UFS_MAXNAMLEN to pathconf, statfs 2017-04-05 01:44:03 +00:00
vm Extract calculation of ioflags from the vm_pager_putpages flags into a 2017-04-05 16:56:04 +00:00
x86 Corrected misspelled versions of rendezvous. 2017-04-09 02:00:03 +00:00
xdr
xen xenstore: fix suspension when using the xenstore device 2017-03-07 09:17:48 +00:00
Makefile Remove pc98 support completely. 2017-01-28 02:22:15 +00:00