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Gleb Smirnoff 2bab0c5535 New sendfile(2) syscall. A joint effort of NGINX and Netflix from 2013 and 
up to now.

The new sendfile is the code that Netflix uses to send their multiple tens
of gigabits of data per second. The new implementation features asynchronous
I/O, when I/O operations are launched, but not awaited to be complete. An
explanation of why such behavior is beneficial compared to old one is
going to be too long for a commit message, so we will skip it here.

Additional features of new syscall are extra flags, which provide an
application more control over data sent. The SF_NOCACHE flag tells
kernel that data shouldn't be cached after it was sent. The SF_READAHEAD()
macro allows to specify readahead size in pages.

The new syscalls is a drop in replacement. No modifications are required
to applications. One can take nginx binary for stable/10 and run it
successfully on head. Although SF_NODISKIO lost its original sense, as now
sendfile doesn't block, and now means something completely different (tm),
using the new sendfile the old way is absolutely safe.

Celebrates:	Netflix global launch!
Sponsored by:	Nginx, Inc.
Sponsored by:	Netflix
Relnotes:	yes
2016-01-08 20:34:57 +00:00
..
atf META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
clang Upgrade our copies of clang and llvm to 3.7.1 release. This is a 2015-12-25 21:39:45 +00:00
csu Start support for the RISC-V 64-bit architecture developed by UC Berkeley. 2015-12-11 22:55:23 +00:00
lib80211 Minor spelling, mdoc and style cleanup. 2015-12-15 10:24:48 +00:00
libalias META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libarchive Don't override LIB*DIR variables from src.libnames.mk. 2015-12-01 22:20:04 +00:00
libauditd Don't override LIB*DIR variables from src.libnames.mk. 2015-12-01 22:03:40 +00:00
libbegemot META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libblocksruntime META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libbluetooth META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libbsdstat META MODE: Update dependencies with 'the-lot' and add missing directories. 2015-12-01 05:23:19 +00:00
libbsm Add au_notify.2 and MLINKs (added in OpenBSM 1.2 alpha 4). 2015-12-18 09:50:24 +00:00
libbsnmp META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libbz2 META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libc New sendfile(2) syscall. A joint effort of NGINX and Netflix from 2013 and 2016-01-08 20:34:57 +00:00
libc_nonshared Add META_MODE support. 2015-06-13 19:20:56 +00:00
libc++ Replace ln -s calls with INSTALL_SYMLINK 2015-12-04 03:17:14 +00:00
libcalendar META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libcam META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libcapsicum META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libcasper META MODE: Update dependencies with 'the-lot' and add missing directories. 2015-12-01 05:23:19 +00:00
libclang_rt Upgrade our copies of clang and llvm to 3.7.1 release. This is a 2015-12-25 21:39:45 +00:00
libcom_err META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libcompat Add META_MODE support. 2015-06-13 19:20:56 +00:00
libcompiler_rt Merge ^/head r288197 through r288456. 2015-10-01 19:02:45 +00:00
libcrypt Replace sys/crypto/sha2/sha2.c with lib/libmd/sha512c.c 2015-12-27 17:33:59 +00:00
libcuse Make CUSE usable with platforms where the size of "unsigned long" is 2015-12-22 09:55:44 +00:00
libcxxrt META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libdevctl META MODE: Update dependencies with 'the-lot' and add missing directories. 2015-12-01 05:23:19 +00:00
libdevinfo META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libdevstat META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libdpv Bump copyright (forgotten part of r293340) 2016-01-07 22:13:17 +00:00
libdwarf META MODE: Fix 'make bootstrap-tools'. 2015-11-25 19:44:51 +00:00
libedit META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libefi use .Mt to mark up email addresses consistently (part3) 2014-06-23 08:23:05 +00:00
libelf Correct r291566 for defining SHLIBDIR. 2015-12-01 16:08:38 +00:00
libelftc Pay attention to MK_ELFTOOLCHAIN_TOOLS so we build the desired tools. 2015-06-15 20:11:15 +00:00
libevent META MODE: Update dependencies with 'the-lot' and add missing directories. 2015-12-01 05:23:19 +00:00
libexecinfo META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libexpat META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libfetch As a followup to r292330, standardize on size_t and add a few comments. 2015-12-16 09:20:45 +00:00
libfigpar META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libgeom META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libgpio META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libgssapi Fix a memory leak in gss_release_oid_set 2016-01-04 17:42:12 +00:00
libiconv_modules META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libipsec META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libjail META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libkiconv META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libkvm Add support to libkvm for reading vmcores from other architectures. 2015-11-27 18:58:26 +00:00
libldns META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
liblzma META MODE: Fix 'make bootstrap-tools'. 2015-11-25 19:44:51 +00:00
libmagic META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libmd DIRDEPS_BUILD: Update dependencies. 2016-01-07 19:58:23 +00:00
libmemstat META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libmilter META MODE: Don't create .meta files when symlinking sources into the obj directory. 2015-11-25 19:44:43 +00:00
libmp META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libmt META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libnandfs META MODE: Connect MK_NAND directories. 2015-12-02 05:31:01 +00:00
libnetbsd Fix spelling error. 2015-11-05 01:54:38 +00:00
libnetgraph META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libngatm META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libnv Remove free'ing of an uninitialized variable 2016-01-04 03:34:22 +00:00
libopenbsd Remove NO_WERROR, after fix from r292023. 2015-12-09 19:25:45 +00:00
libopie META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libpam DIRDEPS_BUILD: Update dependencies. 2015-12-07 23:53:01 +00:00
libpcap META MODE: Don't create .meta files when symlinking sources into the obj directory. 2015-11-25 19:44:43 +00:00
libpjdlog META MODE: Update dependencies with 'the-lot' and add missing directories. 2015-12-01 05:23:19 +00:00
libpmc Add support for Intel Skylake and Intel Broadwell PMC's. The Broadwell PMC's have been 2015-11-30 17:35:49 +00:00
libproc Fix LDADD/DPADD that should be LIBADD. 2015-12-04 03:17:47 +00:00
libprocstat META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libradius META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
librpcsec_gss META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
librpcsvc META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
librt Unbreak symbol versioning. I have no idea when it was broken, but it's been 2015-11-29 06:14:51 +00:00
librtld_db META MODE: Rework circular dependency guard for librtld_db/libproc. 2015-11-25 19:13:35 +00:00
libsbuf META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libsdp META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libsm META MODE: Don't create .meta files when symlinking sources into the obj directory. 2015-11-25 19:44:43 +00:00
libsmb META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libsmdb META MODE: Don't create .meta files when symlinking sources into the obj directory. 2015-11-25 19:44:43 +00:00
libsmutil META MODE: Don't create .meta files when symlinking sources into the obj directory. 2015-11-25 19:44:43 +00:00
libsqlite3 META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libstand Don't install /usr/include/stand.h twice after r293040. 2016-01-07 19:19:23 +00:00
libstdbuf META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libstdthreads META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libsysdecode Add in DIRDEPS_BUILD support. 2016-01-07 00:19:30 +00:00
libtacplus Add META_MODE support. 2015-06-13 19:20:56 +00:00
libtelnet Add META_MODE support. 2015-06-13 19:20:56 +00:00
libthr Typo. 2015-12-27 01:14:42 +00:00
libthread_db META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libucl META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libufs META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libugidfw META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libulog META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libunbound META MODE: Update dependencies with 'the-lot' and add missing directories. 2015-12-01 05:23:19 +00:00
libusb META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libusbhid META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libutil META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libvgl META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libvmmapi META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libwrap Use LIBEXECDIR for /usr/libexec. 2015-11-26 01:14:40 +00:00
libxo META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
liby Add META_MODE support. 2015-06-13 19:20:56 +00:00
libypclnt META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
libz META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
msun Use j instead of a hardcoded index (9) and increment it after 2015-12-23 09:11:18 +00:00
ncurses META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host. 2015-11-25 19:10:28 +00:00
tests Refactor the test/ Makefiles after recent changes to bsd.test.mk (r289158) and 2015-10-12 08:16:03 +00:00
Makefile Make the building of libsmb and mount_smbfs unconditional, now that r292552 2015-12-21 17:41:08 +00:00
Makefile.inc