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ad86a65e32
freebsd-dev/sys
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John Baldwin ad86a65e32 Adjust the handling the various timer frequencies when using the lapic 
timer.  Previously, the various divisors were fixed which meant that while
it gave somewhat reasonable stathz, etc. at hz=1000, it went off the rails
with any other hz value.  With these changes, we now pick a lapic timer hz
based on the value of hz.  If hz is >= 1500, then the lapic timer runs at
hz.  If 1500 hz >= 750, we run the lapic timer at hz * 2.  If hz < 750, we
run at hz * 4.  We compute a divider at runtime to make stathz run as close
to 128 as we can since stathz really wants to be run at something close to
that frequency.  Profiling just runs on every clock tick.  So some examples:

With hz = 100, the lapic timer now runs at 400 instead of 2000.  stathz
will be 133, and profhz = 400.  With hz = 1000 (default), the lapic timer
is still at 2000 (as it is now), stathz is at 133 (as it is now), and
profhz will be 2000 (previously 666).

MFC after:	2 weeks
2008-08-23 12:35:43 +00:00
..
amd64 Adjust the handling the various timer frequencies when using the lapic 2008-08-23 12:35:43 +00:00
arm Provide hooks into the GPIO lines and the ability to set/clear 2008-08-19 22:17:14 +00:00
boot cosmetic changes and style fixes 2008-08-22 20:28:19 +00:00
bsm Integrate the new MPSAFE TTY layer to the FreeBSD operating system. 2008-08-20 08:31:58 +00:00
cam SCSI_DELAY is specified in milliseconds, not seconds. 2008-08-16 21:26:58 +00:00
cddl Add MIPS support. 2008-08-23 04:58:11 +00:00
compat Add comments on NOARGS, NODEF, and NOPROTO. 2008-08-21 22:57:31 +00:00
conf cosmetic changes and style fixes 2008-08-22 20:28:19 +00:00
contrib Commit step 1 of the vimage project, (network stack) 2008-08-17 23:27:27 +00:00
crypto Simplify session selection/allocation. 2008-08-09 20:01:01 +00:00
ddb Add a missing include which was erroneusly left out from the previous 2008-08-18 16:51:44 +00:00
dev Revert bogusly committed file. 2008-08-23 07:46:58 +00:00
fs Integrate the new MPSAFE TTY layer to the FreeBSD operating system. 2008-08-20 08:31:58 +00:00
gdb
geom Commit step 1 of the vimage project, (network stack) 2008-08-17 23:27:27 +00:00
gnu - Disallow XFS mounting in write mode. The write support never worked really 2008-07-21 23:01:09 +00:00
i386 Adjust the handling the various timer frequencies when using the lapic 2008-08-23 12:35:43 +00:00
ia64 Integrate the new MPSAFE TTY layer to the FreeBSD operating system. 2008-08-20 08:31:58 +00:00
isa
kern In nmount(), when we see the "force" option, 2008-08-23 01:16:09 +00:00
libkern Add strcspn to libkern for use by xenbus routines. Will add to build 2008-08-15 04:07:22 +00:00
mips Export 'struct pcpu' to userland w/o requiring _KERNEL. A few ports 2008-08-19 19:53:52 +00:00
modules Integrate the new MPSAFE TTY layer to the FreeBSD operating system. 2008-08-20 08:31:58 +00:00
net ifnet_setbyindex() is only used locally, go back to being static. 2008-08-20 05:00:18 +00:00
net80211 Verify that the WPA flags set are actually compatible with the 2008-08-09 05:46:01 +00:00
netatalk Remove NETISR_MPSAFE, which allows specific netisr handlers to be directly 2008-07-04 00:21:38 +00:00
netgraph A bunch of formatting fixes brough to light by, or created by the Vimage commit 2008-08-20 01:05:56 +00:00
netinet Add an explicit comment why we NULLify the two variables. 2008-08-23 12:27:18 +00:00
netinet6 Fix some of the formatting fixes.. It's amazing how some thing stand out 2008-08-20 01:24:55 +00:00
netipsec Commit step 1 of the vimage project, (network stack) 2008-08-17 23:27:27 +00:00
netipx Begin the sysctl descriptions with a capital letter. 2008-07-25 23:54:07 +00:00
netnatm Remove NETISR_MPSAFE, which allows specific netisr handlers to be directly 2008-07-04 00:21:38 +00:00
netncp
netsmb
nfs
nfs4client Move the NFS/RPC code away from lbolt. 2008-07-22 21:27:22 +00:00
nfsclient Commit step 1 of the vimage project, (network stack) 2008-08-17 23:27:27 +00:00
nfsserver Remove spls from NFS server setup call; expand receive socket buffer 2008-06-30 20:43:06 +00:00
nlm Fix an interop issue with Linux: If you do nothing but TCP 2008-08-13 12:03:31 +00:00
opencrypto
pc98 Integrate the new MPSAFE TTY layer to the FreeBSD operating system. 2008-08-20 08:31:58 +00:00
pccard
pci Move wb driver from sys/pci to sys/dev/wb. 2008-08-14 21:26:29 +00:00
powerpc Integrate the new MPSAFE TTY layer to the FreeBSD operating system. 2008-08-20 08:31:58 +00:00
rpc Rename the static M_RPC defined here to M_RPCCLNT, since a global M_RPC 2008-08-18 12:11:47 +00:00
security Make sure we check the preselection masks present for all audit pipes. 2008-08-11 20:14:56 +00:00
sparc64 cosmetic changes and style fixes 2008-08-22 20:28:19 +00:00
sun4v Integrate the new MPSAFE TTY layer to the FreeBSD operating system. 2008-08-20 08:31:58 +00:00
sys Minor style nits. 2008-08-23 01:20:36 +00:00
tools
ufs Revert r181345. 2008-08-10 12:15:36 +00:00
vm Allow the MD UMA allocator to use VM routines like kmem_*(). Existing code requires MD allocator to be available early in the boot process, before the VM is fully available. This defines a new VM define (UMA_MD_SMALL_ALLOC_NEEDS_VM) that allows an MD UMA small allocator to become available at the same time as the default UMA allocator. 2008-08-23 01:35:36 +00:00
xdr
xen - add more debug cruft to xenbus 2008-08-20 09:20:12 +00:00
Makefile Improve the glimpse target: don't index .svn and compile directories. 2008-08-15 14:11:30 +00:00