Alexander Motin fd578f6543 Make sound(4) more flexible in setting soft buffer and block sizes when ... hardware imposes strict limitations on hard buffer and block sizes. Previous code set soft buffer to be no smaller then hard buffer. On some cards with fixed 64K physical buffer that caused up to 800ms play latency. New code allows to set soft buffer size down to just two blocks of the hard buffer and to not write more then that size ahead to the hardware buffer. As result of that change I was able to reduce full practically measured record-playback loop delay in those conditions down to only about 115ms with theoretical playback latency of only about 50ms. New code works fine for both vchans and direct cases. In both cases sound(4) tries to follow hw.snd.latency_profile and hw.snd.latency values and application-requested buffer and block sizes as much as limitation of two hardware blocks allows. Reviewed by: silence on multimedia@		2012-01-31 21:46:28 +00:00
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amd64	Add isci(4) driver for amd64 and i386 targets.	2012-01-31 19:38:18 +00:00
arm	Add C11 macros describing subnormal numbers to float.h.	2012-01-23 06:36:41 +00:00
boot	Clarify and improve the boot menu with some small changes:	2012-01-25 18:36:01 +00:00
bsm
cam	Add CAM infrastructure to allow reporting when a drive's long read capacity	2012-01-26 18:09:28 +00:00
cddl	always exclude data bufs regardless of debug settings	2012-01-29 00:19:19 +00:00
compat	Add support for the extended FPU states on amd64, both for native	2012-01-21 17:45:27 +00:00
conf	Add isci(4) driver for amd64 and i386 targets.	2012-01-31 19:38:18 +00:00
contrib	Allocate our mbuf with m_get2().	2012-01-17 12:14:26 +00:00
crypto	Add support for the extended FPU states on amd64, both for native	2012-01-21 17:45:27 +00:00
ddb	Use strchr() and strrchr().	2012-01-02 12:12:10 +00:00
dev	Make sound(4) more flexible in setting soft buffer and block sizes when	2012-01-31 21:46:28 +00:00
fs	When a "mount -u" switches an NFS mount point from TCP to UDP,	2012-01-31 03:58:26 +00:00
gdb	kern cons: introduce infrastructure for console grabbing by kernel	2011-12-17 15:08:43 +00:00
geom	Avoid to check the same cache line/variable from all the locking	2012-01-28 14:00:21 +00:00
gnu	Replace GPLd headers from the Maestro3 driver with BSD licensed	2012-01-20 22:37:10 +00:00
i386	Add isci(4) driver for amd64 and i386 targets.	2012-01-31 19:38:18 +00:00
ia64	Add C11 macros describing subnormal numbers to float.h.	2012-01-23 06:36:41 +00:00
isa	- There's no need to overwrite the default device method with the default	2011-11-22 21:28:20 +00:00
kern	A debugger which requested PT_FOLLOW_FORK should get the notification	2012-01-30 20:00:29 +00:00
kgssapi	Add missing break statement to make sure all 3DES etypes really are treated	2011-10-10 09:13:07 +00:00
libkern	Implement extensions on top of standards instead of the other way around.	2012-01-03 07:05:30 +00:00
mips	Add C11 macros describing subnormal numbers to float.h.	2012-01-23 06:36:41 +00:00
modules	Add isci(4) driver for amd64 and i386 targets.	2012-01-31 19:38:18 +00:00
net	A flowtable entry can continue referencing an llentry indefinitely if the entry is repeatedly	2012-01-26 20:02:40 +00:00
net80211	Add a DFS debugging mode which is useful when doing automated DFS	2012-01-31 00:03:49 +00:00
netatalk	Convert all users of IF_ADDR_LOCK to use new locking macros that specify	2012-01-05 19:00:36 +00:00
netgraph	Provide a findhook method for ng_socket(4). The node stores a	2012-01-23 16:43:13 +00:00
netinet	a variable was erroneously declared as 32 bit instead of 64.	2012-01-27 13:26:25 +00:00
netinet6	Remove casts from inet6 address testing macros, thus preserving	2012-01-26 12:04:19 +00:00
netipsec	Clean up some #endif comments removing from short sections. Add #endif	2012-01-22 02:13:19 +00:00
netipx	Convert all users of IF_ADDR_LOCK to use new locking macros that specify	2012-01-05 19:00:36 +00:00
netnatm
netncp	Change ncp_scan_bindery_object() to pass a constant search string.	2011-10-16 08:44:03 +00:00
netsmb	Add unicode support to msdosfs and smbfs; original pathes from imura,	2011-11-18 03:05:20 +00:00
nfs	Some cleanup of BOOTP code. Initially I wanted to just change the ifioctl()	2011-12-13 07:02:48 +00:00
nfsclient	When a "mount -u" switches an NFS mount point from TCP to UDP,	2012-01-31 03:58:26 +00:00
nfsserver	Honor NFSv3 commit call (RFC 1813, Section 3.3.21) where when count is 0,	2011-12-15 02:26:53 +00:00
nlm	jwd@ reported a problem via email to freebsd-fs@ on Aug 25, 2011	2012-01-31 02:11:05 +00:00
ofed	Remove spurious 8bit chars, turning files into plain ASCII.	2012-01-15 13:23:54 +00:00
opencrypto
pc98	Add support for the extended FPU states on amd64, both for native	2012-01-21 17:45:27 +00:00
pci	To save more power, switch to 10/100Mbps link when controller is	2011-11-23 23:29:18 +00:00
powerpc	Fix build for the case of powerpc64 kernel without COMPAT_FREEBSD32.	2012-01-30 19:31:17 +00:00
rpc	Both a crash reported on freebsd-current on Oct. 18 under the	2011-11-03 14:38:03 +00:00
security	Use strchr() and strrchr().	2012-01-02 12:12:10 +00:00
sparc64	As it turns out r227960 may still be insufficient with PREEMPTION	2012-01-28 22:42:33 +00:00
sys	Isolate v_caddr_t in the ie driver.	2012-01-31 13:00:40 +00:00
teken	Link the demo application against ncursesw to make Unicode work.	2011-10-13 14:20:27 +00:00
tools	Restore the comment that I removed by accident.	2011-11-09 13:26:59 +00:00
ufs	There are several bugs/hangs when trying to take a snapshot on a UFS/FFS	2012-01-17 01:14:56 +00:00
vm	exclude kmem_alloc'ed ARC data buffers from kernel minidumps on amd64	2012-01-27 20:18:31 +00:00
x86	Fix a few bugs in the SRAT parsing code:	2012-01-03 20:53:58 +00:00
xdr
xen	Xen netback driver rewrite.	2012-01-26 16:35:09 +00:00
Makefile	Improve the cscope target's handling of MD directories. Automatically	2012-01-03 17:31:27 +00:00