Arjan van de Ven
e07e23e1fd
[PATCH] non lazy "sleazy" fpu implementation ...
Right now the kernel on x86-64 has a 100% lazy fpu behavior: after *every*
context switch a trap is taken for the first FPU use to restore the FPU
context lazily. This is of course great for applications that have very
sporadic or no FPU use (since then you avoid doing the expensive
save/restore all the time). However for very frequent FPU users... you
take an extra trap every context switch.
The patch below adds a simple heuristic to this code: After 5 consecutive
context switches of FPU use, the lazy behavior is disabled and the context
gets restored every context switch. If the app indeed uses the FPU, the
trap is avoided. (the chance of the 6th time slice using FPU after the
previous 5 having done so are quite high obviously).
After 256 switches, this is reset and lazy behavior is returned (until
there are 5 consecutive ones again). The reason for this is to give apps
that do longer bursts of FPU use still the lazy behavior back after some
time.
[akpm@osdl.org: place new task_struct field next to jit_keyring to save space]
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
2006-09-26 10:52:36 +02:00
[HEADERS] One line per header in Kbuild files to reduce conflicts
2006-09-19 12:43:58 +01:00
[HEADERS] One line per header in Kbuild files to reduce conflicts
2006-09-19 12:43:58 +01:00
Merge git://git.infradead.org/hdrinstall-2.6
2006-07-04 12:55:45 -07:00
NLM/lockd: remove b_done
2006-08-03 16:56:02 -04:00
[MMC] Cleanup 385e3227d4
2006-09-07 15:57:12 +01:00
MTD: Convert Atmel PRI information to AMD format
2006-08-16 20:13:06 -05:00
[NETFILTER]: Add dscp,DSCP headers to header-y
2006-09-24 19:28:47 -07:00
[NETFILTER]: x_tables: remove unused argument to target functions
2006-09-22 14:55:33 -07:00
[HEADERS] One line per header in Kbuild files to reduce conflicts
2006-09-19 12:43:58 +01:00
[NETFILTER]: PPTP conntrack: fix another GRE keymap leak
2006-09-22 15:20:20 -07:00
[NETFILTER]: x_tables: remove unused argument to target functions
2006-09-22 14:55:33 -07:00
[HEADERS] One line per header in Kbuild files to reduce conflicts
2006-09-19 12:43:58 +01:00
[HEADERS] One line per header in Kbuild files to reduce conflicts
2006-09-19 12:43:58 +01:00
[PATCH] SPI: infrastructure to initialize spi_device.mode early
2006-06-28 15:51:01 -07:00
SUNRPC: Add refcounting to the struct rpc_xprt
2006-09-22 23:25:01 -04:00
[HEADERS] One line per header in Kbuild files to reduce conflicts
2006-09-19 12:43:58 +01:00
[HEADERS] One line per header in Kbuild files to reduce conflicts
2006-09-19 12:43:58 +01:00
[PATCH] USB: move usb-serial.h to include/linux/usb/
2006-07-12 16:03:25 -07:00
[PATCH] ac97_codec: make bitfield unsigned
2006-06-28 14:59:06 -07:00
[PATCH] pgdat allocation for new node add (get node id by acpi)
2006-06-27 17:32:36 -07:00
Move several *_SUPER_MAGIC symbols to include/linux/magic.h.
2006-09-24 11:13:19 -04:00
[libata] Trim trailing whitespace.
2006-08-31 00:02:15 -04:00
[PATCH] Move linux/device.h include in linux/atmdev.h to #ifdef __KERNEL__ section
2006-09-06 11:00:02 -07:00
[PATCH] audit: AUDIT_PERM support
2006-09-11 13:32:30 -04:00
Merge mulgrave-w:git/linux-2.6
2006-09-23 21:03:52 -05:00
[PATCH] Only the first two bits in bio->bi_rw and rq->flags match
2006-07-06 10:18:05 +02:00
[XFRM]: Dynamic xfrm_state hash table sizing.
2006-09-22 15:08:41 -07:00
[PATCH] fs/buffer.c: cleanups
2006-06-27 17:32:38 -07:00
[PATCH] Process Events: Fix biarch compatibility issue. use __u64 timestamp
2006-07-31 13:28:36 -07:00
[PATCH] mark address_space_operations const
2006-06-28 14:59:04 -07:00
Move several *_SUPER_MAGIC symbols to include/linux/magic.h.
2006-09-24 11:13:19 -04:00
[PATCH] vcsa attribute bits -> ioctl(VT_GETHIFONTMASK)
2006-08-27 11:01:29 -07:00
[PATCH] lockdep: clean up completion initializer in smpboot.c
2006-07-10 13:24:14 -07:00
[PATCH] vt: Remove VT-specific declarations and definitions from tty.h
2006-07-10 13:24:16 -07:00
cpu hotplug: simplify and hopefully fix locking
2006-07-23 12:12:16 -07:00
[PATCH] Reorganize the cpufreq cpu hotplug locking to not be totally bizare
2006-07-26 07:21:40 -07:00
[CRYPTO] api: Deprecate crypto_digest_* and crypto_alg_available
2006-09-21 11:46:23 +10:00
NFS: Add dentry materialisation op
2006-09-22 23:24:30 -04:00
[DCCP]: Introduce constants for CCID numbers
2006-09-24 17:56:32 -03:00
[PATCH] debug_locks.h: add "struct task_struct;"
2006-08-06 08:57:47 -07:00
[PATCH] task delay accounting fixes
2006-09-01 11:39:08 -07:00
[IOAT]: fix header file kernel-doc
2006-07-03 19:44:51 -07:00
typo fixes: infomation -> information
2006-06-30 18:25:18 +02:00
[PATCH] mark address_space_operations const
2006-06-28 14:59:04 -07:00
Move several *_SUPER_MAGIC symbols to include/linux/magic.h.
2006-09-24 11:13:19 -04:00
elf-em.h: Define and explain both EM_MIPS_RS3_LE and EM_MIPS_RS4_BE.
2006-06-29 21:10:50 +01:00
[PATCH] FDPIC: Add coredump capability for the ELF-FDPIC binfmt
2006-07-10 13:24:22 -07:00
[PATCH] Fix IS_ERR Threshold Value
2006-07-01 09:56:03 -07:00
Move several *_SUPER_MAGIC symbols to include/linux/magic.h.
2006-09-24 11:13:19 -04:00
Move several *_SUPER_MAGIC symbols to include/linux/magic.h.
2006-09-24 11:13:19 -04:00
[PATCH] fbdev: include backlight.h only when __KERNEL__ is defined
2006-08-14 12:54:29 -07:00
[IPV4]: Add support for fwmark masks in routing rules
2006-09-22 15:18:10 -07:00
[NET]: Fix sk->sk_filter field access
2006-09-22 15:18:47 -07:00
[PATCH] Allow file systems to manually d_move() inside of ->rename()
2006-09-24 13:50:45 -07:00
[PATCH] ppc32: board-specific part of fs_enet update
2006-08-19 17:44:31 -04:00
[PATCH] fix missed create event for directory audit
2006-08-03 10:50:30 -04:00
[PATCH] pi-futex: robust-futex exit
2006-07-28 21:02:00 -07:00
[GENL]: Provide more information to userspace about registered genl families
2006-09-22 15:18:51 -07:00
[PATCH] devfs: Remove the gendisk devfs_name field as it's no longer needed
2006-06-26 12:25:08 -07:00
[PATCH] Add the vgetcpu vsyscall
2006-09-26 10:52:28 +02:00
[PATCH] lockdep: core
2006-07-03 15:27:03 -07:00
[WAN]: converting generic HDLC to use netif_dormant*()
2006-07-12 13:59:06 -07:00
[PATCH] Documentation for lock_key in struct hrtimer_base
2006-09-06 11:00:01 -07:00
[PATCH] RTC subsystem, Add ISL1208 support
2006-07-14 21:53:53 -07:00
[PATCH] i2c-powermac: Fix master_xfer return value
2006-07-12 15:43:07 -07:00
[PATCH] ide: option to disable cache flushes for buggy drives
2006-07-28 08:54:59 +02:00
[PATCH] lockdep: locking init debugging improvement
2006-07-03 15:27:02 -07:00
[NET]: Move netlink interface bits to linux/if.h
2006-09-22 14:53:50 -07:00
[IPV6] ADDRCONF: Mobile IPv6 Home Address support.
2006-09-22 15:20:29 -07:00
[VLAN]: Make sure bonding packet drop checks get done in hwaccel RX path.
2006-08-17 16:29:46 -07:00
[IPV4]: Make struct sockaddr_in::sin_port __be16
2006-09-22 15:18:29 -07:00
[IPV6] MIP6: Add Mobility header definition.
2006-09-22 15:07:00 -07:00
[NET]: Add common helper functions to convert IPv6/IPv4 address string to network address structure.
2006-09-22 15:18:01 -07:00
[PATCH] lockdep: core
2006-07-03 15:27:03 -07:00
Input: introduce input_inject_event() function
2006-07-06 00:22:43 -04:00
[PATCH] lockdep: irqtrace subsystem, core
2006-07-03 15:27:03 -07:00
[PATCH] The scheduled unexport of insert_resource
2006-07-12 16:09:08 -07:00
[PATCH] uninline ioprio_best()
2006-08-21 10:02:50 +02:00
[NetLabel]: core network changes
2006-09-22 14:53:32 -07:00
[PATCH] drivers/char/ipmi/ipmi_msghandler.c: make proc_ipmi_root static
2006-06-27 17:32:48 -07:00
[IPV6] NDISC: Add proxy_ndp sysctl.
2006-09-22 15:20:25 -07:00
[PATCH] always define IRQ_PER_CPU
2006-07-31 13:28:39 -07:00
[PATCH] lockdep: irqtrace subsystem, core
2006-07-03 15:27:03 -07:00
Move several *_SUPER_MAGIC symbols to include/linux/magic.h.
2006-09-24 11:13:19 -04:00
[PATCH] Manage jbd allocations from its own slabs
2006-08-27 11:01:32 -07:00
Move several *_SUPER_MAGIC symbols to include/linux/magic.h.
2006-09-24 11:13:19 -04:00
[PATCH] Add parentheses around arguments in the SH_DIV macro.
2006-07-31 13:28:43 -07:00
[PATCH] lockdep: add print_ip_sym()
2006-07-03 15:27:00 -07:00
[PATCH] remove active field from tty buffer structure
2006-06-28 14:59:05 -07:00
Remove dead netfilter_logging.h from include/linux/Kbuild
2006-09-24 22:06:48 +01:00
[PATCH] x86: Allow users to force a panic on NMI
2006-09-26 10:52:27 +02:00
[PATCH] Keys: Allow in-kernel key requestor to pass auxiliary data to upcaller
2006-06-29 10:26:20 -07:00
PCI: docking station: remove dock uevents
2006-08-03 13:20:06 -07:00
[PATCH] remove kernel/kthread.c:kthread_stop_sem()
2006-07-14 21:53:52 -07:00
[PATCH] prevent timespec/timeval to ktime_t overflow
2006-09-06 11:00:02 -07:00
[libata] No need for all those arch libata-portmap.h headers
2006-09-25 15:33:09 -04:00
[PATCH] x86: error_code is not safe for kprobes
2006-09-26 10:52:34 +02:00
[PATCH] list_is_last utility
2006-07-14 21:53:56 -07:00
[PATCH] lockdep: core, reduce per-lock class-cache size
2006-07-10 13:24:14 -07:00
Revert "[PATCH] kthread: update loop.c to use kthread"
2006-06-26 11:55:42 -07:00
Move several *_SUPER_MAGIC symbols to include/linux/magic.h.
2006-09-24 11:13:19 -04:00
[PATCH] char/rtc: Handle memory-mapped chips properly
2006-07-10 13:24:25 -07:00
[PATCH] pgdat allocation and update for ia64 of memory hotplug: allocate pgdat and per node data
2006-06-27 17:32:37 -07:00
Move several *_SUPER_MAGIC symbols to include/linux/magic.h.
2006-09-24 11:13:19 -04:00
[PATCH] devfs: Remove the miscdevice devfs_name field as it's no longer needed
2006-06-26 12:25:08 -07:00
Merge ../linus
2006-09-05 17:20:21 -04:00
[PATCH] ZVC: Scale thresholds depending on the size of the system
2006-09-01 11:39:08 -07:00
[S390] zcrypt adjunct processor bus.
2006-09-20 15:58:25 +02:00
[SCSI] MODULE_FIRMWARE for binary firmware(s)
2006-08-30 10:47:27 -04:00
Move several *_SUPER_MAGIC symbols to include/linux/magic.h.
2006-09-24 11:13:19 -04:00
[PATCH] lockdep: prove mutex locking correctness
2006-07-03 15:27:04 -07:00
[PATCH] lockdep: prove mutex locking correctness
2006-07-03 15:27:04 -07:00
[PATCH] symlink nesting level change
2006-07-14 21:53:55 -07:00
Move several *_SUPER_MAGIC symbols to include/linux/magic.h.
2006-09-24 11:13:19 -04:00
[NEIGH]: Move netlink neighbour table bits to linux/neighbour.h
2006-09-22 14:54:04 -07:00
[NET]: sock_register interface changes
2006-09-22 14:54:20 -07:00
Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
2006-09-24 10:15:13 -07:00
[NETFILTER]: Get rid of HW checksum invalidation
2006-09-22 14:53:54 -07:00
[NETFILTER] bridge: simplify nf_bridge_pad
2006-09-22 15:18:31 -07:00
[NETFILTER]: ip6table_mangle: reroute when nfmark changes in NF_IP6_LOCAL_OUT
2006-09-22 15:19:51 -07:00
[SCSI] SCSI and FC Transport: add netlink support for posting of transport events
2006-09-02 15:33:49 -05:00
[PATCH] knfsd: nfsd4: add per-operation server stats
2006-07-10 13:24:27 -07:00
Move several *_SUPER_MAGIC symbols to include/linux/magic.h.
2006-09-24 11:13:19 -04:00
NFSv4: Fix a use-after-free issue with the nfs server.
2006-09-22 23:24:54 -04:00
NFS: Return an error when starting the idmapping pipe
2006-09-22 23:24:32 -04:00
NFS: Use cached page as buffer for NFS symlink requests
2006-09-22 23:24:53 -04:00
[PATCH] register_one_node() compile fix
2006-08-27 11:01:32 -07:00
[PATCH] lockdep: locking init debugging improvement
2006-07-03 15:27:02 -07:00
[PATCH] gpio: drop vtable members .gpio_set_high .gpio_set_low gpio_set is enough
2006-07-14 21:53:54 -07:00
[PATCH] zoned vm counters: conversion of nr_writeback to per zone counter
2006-06-30 11:25:35 -07:00
[PATCH] zoned vm counters: conversion of nr_pagecache to per zone counter
2006-06-30 11:25:34 -07:00
[PATCH] PCI: PCIE power management quirk
2006-07-12 16:05:48 -07:00
Merge mulgrave-w:git/scsi-misc-2.6
2006-09-23 15:33:43 -05:00
[PATCH] PCI: add PCI Express AER register definitions to pci_regs.h
2006-07-12 16:05:48 -07:00
[PATCH] PAL: Support of the fixed PHY
2006-08-19 17:44:31 -04:00
[NET_SCHED]: Add mask support to fwmark classifier
2006-09-22 15:18:12 -07:00
[PATCH] Fix plist include dependency
2006-06-28 15:54:27 -07:00
[PATCH] remove kernel/power/pm.c:pm_unregister_all()
2006-07-12 16:09:08 -07:00
[PATCH] powermac: More powermac backlight fixes
2006-07-31 13:28:45 -07:00
[PATCH] 64bit resource: change pnp core to use resource_size_t
2006-06-27 09:24:00 -07:00
[ATM]: add+use poison defines
2006-07-03 19:48:25 -07:00
Move several *_SUPER_MAGIC symbols to include/linux/magic.h.
2006-09-24 11:13:19 -04:00
Move several *_SUPER_MAGIC symbols to include/linux/magic.h.
2006-09-24 11:13:19 -04:00
[PATCH] rcu: Add lock annotations to RCU locking primitives
2006-06-30 11:25:39 -07:00
Move several *_SUPER_MAGIC symbols to include/linux/magic.h.
2006-09-24 11:13:19 -04:00
[PATCH] Fix broken kernel headers preventing ARM build
2006-07-13 13:21:35 -07:00
[PATCH] Correct rtc_wkalrm comments
2006-06-30 11:25:38 -07:00
[PATCH] lockdep: better lock debugging
2006-07-03 15:27:01 -07:00
[RTNETLINK]: Unexport rtnl socket
2006-09-22 14:55:02 -07:00
[PATCH] lockdep: prove rwsem locking correctness
2006-07-03 15:27:04 -07:00
[PATCH] lockdep: add more rwsem.h documentation
2006-07-10 13:24:14 -07:00
[PATCH] scatterlist: Add const to sg_set_buf/sg_init_one pointer argument
2006-09-21 11:46:16 +10:00
[PATCH] non lazy "sleazy" fpu implementation
2006-09-26 10:52:36 +02:00
[PATCH] chardev: GPIO for SCx200 & PC-8736x: whitespace pre-clean
2006-06-27 17:32:42 -07:00
[PATCH] chardev: GPIO for SCx200 & PC-8736x: device minor numbers are unsigned ints
2006-06-27 17:32:42 -07:00
[NetLabel]: SELinux support
2006-09-22 14:53:36 -07:00
[PATCH] lockdep: locking init debugging improvement
2006-07-03 15:27:02 -07:00
[SERIAL] 8250: add tsi108 serial support
2006-07-09 21:11:09 +01:00
[PATCH] irq-flags: consolidate flags for request_irq
2006-07-02 13:58:46 -07:00
[NET]: Replace CHECKSUM_HW by CHECKSUM_PARTIAL/CHECKSUM_COMPLETE
2006-09-22 14:53:53 -07:00
Move several *_SUPER_MAGIC symbols to include/linux/magic.h.
2006-09-24 11:13:19 -04:00
[PATCH] add smp_setup_processor_id()
2006-06-30 11:25:37 -07:00
[SCTP]: Extend /proc/net/sctp/snmp to provide more statistics.
2006-09-22 14:55:16 -07:00
[PATCH] lockdep: prove spinlock rwlock locking correctness
2006-07-03 15:27:04 -07:00
[PATCH] lockdep: prove spinlock rwlock locking correctness
2006-07-03 15:27:04 -07:00
[PATCH] lockdep: prove spinlock rwlock locking correctness
2006-07-03 15:27:04 -07:00
[PATCH] lockdep: prove spinlock rwlock locking correctness
2006-07-03 15:27:04 -07:00
[PATCH] lockdep: prove spinlock rwlock locking correctness
2006-07-03 15:27:04 -07:00
[PATCH] lockdep: prove spinlock rwlock locking correctness
2006-07-03 15:27:04 -07:00
[PATCH] x86: Some preparationary cleanup for stack trace
2006-09-26 10:52:34 +02:00
Remove offsetof() from user-visible <linux/stddef.h>
2006-09-22 08:00:42 +01:00
[PATCH] ZVC/zone_reclaim: Leave 1% of unmapped pagecache pages for file I/O
2006-07-03 15:26:59 -07:00
[PATCH] x86: Add portable getcpu call
2006-09-26 10:52:28 +02:00
[PATCH] x86: Allow users to force a panic on NMI
2006-09-26 10:52:27 +02:00
[PATCH] per-task delay accounting taskstats interface: control exit data through cpumasks
2006-07-14 21:53:57 -07:00
[PATCH] per-task delay accounting taskstats interface: control exit data through cpumasks
2006-07-14 21:53:57 -07:00
[PATCH] per-task-delay-accounting: setup
2006-07-14 21:53:56 -07:00
[PATCH] headers_check: remove <asm/timex.h> from user export
2006-09-13 07:32:15 -07:00
[PATCH] sched: mc/smt power savings sched policy
2006-06-27 17:32:45 -07:00
[PATCH] Fix tty layer DoS and comment relevant code
2006-08-27 11:01:34 -07:00
[PATCH] devfs: Rename TTY_DRIVER_NO_DEVFS to TTY_DRIVER_DYNAMIC_DEV
2006-06-26 12:25:09 -07:00
[PATCH] remove active field from tty buffer structure
2006-06-28 14:59:05 -07:00
[PATCH] 64bit Resource: finally enable 64bit resource sizes
2006-06-27 09:24:00 -07:00
typo fixes: infomation -> information
2006-06-30 18:25:18 +02:00
[PATCH] ufs: truncate should allocate block for last byte
2006-07-01 09:56:03 -07:00
Revert "[PATCH] USB: move usb_device_class class devices to be real devices"
2006-08-02 16:52:10 -07:00
[PATCH] USB: Add some basic WUSB definitions
2006-07-12 16:03:21 -07:00
[PATCH] USB: gadget section fixups
2006-07-12 16:03:24 -07:00
usb-storage: Add US_FL_IGNORE_DEVICE flag; ignore ZyXEL G220F
2006-08-02 16:41:42 -07:00
Move several *_SUPER_MAGIC symbols to include/linux/magic.h.
2006-09-24 11:13:19 -04:00
kbuild: introduce utsrelease.h
2006-07-03 23:30:54 +02:00
V4L/DVB (4605): Fixes an issue with V4L1 and make headers-install
2006-09-10 13:45:55 -03:00
V4L/DVB (4605): Fixes an issue with V4L1 and make headers-install
2006-09-10 13:45:55 -03:00
[PATCH] mm: fix oom roll-back of __vmalloc_area_node
2006-07-14 21:53:51 -07:00
[PATCH] fix vmstat per cpu usage
2006-08-06 08:57:47 -07:00
[PATCH] vcsa attribute bits -> ioctl(VT_GETHIFONTMASK)
2006-08-27 11:01:29 -07:00
[PATCH] vt: Remove VT-specific declarations and definitions from tty.h
2006-07-10 13:24:16 -07:00
[PATCH] uninline init_waitqueue_head()
2006-07-10 13:24:25 -07:00
[CPUFREQ] Add queue_delayed_work_on() interface for workqueues.
2006-06-30 01:33:31 -04:00
Add a real API for dealing with blk_congestion_wait()
2006-09-22 23:24:54 -04:00
[XFRM] POLICY: Support netlink socket interface for sub policy.
2006-09-22 15:08:35 -07:00
e07e23e1fd