Knut Petersen c5eb5c1ea9 [PATCH] framebuffer: bit_putcs() optimization for 8x* fonts ... This trivial patch gives a performance boost to the framebuffer console Constructing the bitmaps that are given to the bitblit functions of the framebuffer drivers is time consuming. Here we avoide a call to the slow fb_pad_aligned_buffer(). The patch replaces that call with a simple but much more efficient bytewise copy. The kernel spends a significant time at this place if you use 8x* fonts. Every pixel displayed on your screen is prepared here. Some benchmark results: Displaying a file of 2000 lines with 160 characters each takes 889 ms system time using cyblafb on my system (I´m using a 1280x1024 video mode, resulting in a 160x64 character console) Displaying the same file with the enclosed patch applied to 2.6.13 only takes 760 ms system time, saving 129 ms or 14.5%. Font widths other than 8 are not affected. The advantage and correctness of this patch should be obvious. Signed-off-by: Knut Petersen <Knut_Petersen@t-online.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2005-09-09 13:58:02 -07:00
..
acorn	[PATCH] ARM: switch fd1772.c from sleep_on to wait_event	2005-08-07 14:23:42 +01:00
acpi	[PATCH] Fix CONFIG_ACPI_BLACKLIST_YEAR	2005-09-09 10:45:35 -07:00
atm	[ATM]: Fix dereference of uninitialized pointer in zatm	2005-09-02 12:18:03 -07:00
base	[SCSI] Re-do "final klist fixes"	2005-09-07 18:44:33 -07:00
block	[PATCH] deadline: clean up question mark operator	2005-09-09 13:57:33 -07:00
bluetooth	[Bluetooth]: Move packet type into the SKB control buffer	2005-08-29 15:55:13 -07:00
cdrom	Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-for-linus-2.6	2005-09-07 17:31:27 -07:00
char	[PATCH] console: Fix buffer copy on vc resize	2005-09-09 13:58:00 -07:00
cpufreq	[CPUFREQ] Bugfix: Call driver exit in cpufreq_add_dev error path	2005-08-31 22:21:28 -07:00
crypto	[CRYPTO] Update IV correctly for Padlock CBC encryption	2005-07-06 13:54:09 -07:00
dio	[PATCH] Driver Core: drivers/base - drivers/i2c/chips/adm1026.c: update device attribute callbacks	2005-06-20 15:15:32 -07:00
eisa	[PATCH] Driver Core: drivers/base - drivers/i2c/chips/adm1026.c: update device attribute callbacks	2005-06-20 15:15:32 -07:00
fc4	[SCSI] fc4 warning fix	2005-07-30 09:47:53 -05:00
firmware	[PATCH] dcdbas: add Dell Systems Management Base Driver with sysfs support	2005-09-07 16:57:27 -07:00
hwmon	[PATCH] hwmon: (3/3) pc87360 driver update	2005-09-05 09:26:55 -07:00
i2c	Merge master.kernel.org:/home/rmk/linux-2.6-i2c manually	2005-09-08 15:43:09 -07:00
ide	[PATCH] pcmcia: more IDs for ide_cs	2005-09-09 13:57:48 -07:00
ieee1394	[PATCH] provide MODALIAS= enviroment variable to autoload ieee1394 modules via udev	2005-09-07 16:57:41 -07:00
infiniband	[PATCH] PCI: remove CONFIG_PCI_NAMES	2005-09-08 14:57:23 -07:00
input	[PATCH] Input: Add a new switch event type	2005-09-07 16:57:54 -07:00
isdn	[PATCH] -Wundef fixes (hisax)	2005-09-07 17:17:33 -07:00
macintosh	[PATCH] swsusp: switch pm_message_t to struct	2005-09-05 00:06:16 -07:00
mca	[PATCH] unexport mca_find_device_by_slot	2005-06-25 16:24:56 -07:00
md	[PATCH] kill bio->bi_set	2005-09-07 16:57:20 -07:00
media	[PATCH] v4l: tveeprom improved to support newer Hauppage cards	2005-09-09 13:57:54 -07:00
message	Merge by hand (conflicts in sd.c)	2005-09-06 17:52:54 -05:00
mfd	[MFD] Add SA11x0 MCP platform device support	2005-08-18 10:10:46 +01:00
misc	[SERIAL] Update ibmasm driver for death of register_serial&co	2005-09-07 21:37:00 +01:00
mmc	[MMC] Add mmc_detect_change() delay support for PXAMCI driver	2005-09-08 22:48:16 +01:00
mtd	[PATCH] detect soft lockups	2005-09-07 16:57:17 -07:00
net	[PATCH] cs89x0: add netpoll support	2005-09-09 13:57:32 -07:00
nubus
oprofile	[PATCH] clean up inline static vs static inline	2005-07-27 16:26:20 -07:00
parisc	[PATCH] acpi bridge hotadd: ACPI based root bridge hot-add	2005-06-27 21:52:39 -07:00
parport	[PATCH] PCI: remove pci_find_device from parport_pc.c	2005-09-08 14:57:25 -07:00
pci	[PATCH] yenta: share code with PCI core	2005-09-09 13:57:47 -07:00
pcmcia	[PATCH] pcmcia: add pcmcia to IRQ information	2005-09-09 13:57:48 -07:00
pnp	Merge linux-2.6 with linux-acpi-2.6	2005-09-08 01:45:47 -04:00
s390	[PATCH] s390: claw driver fixes	2005-09-06 22:15:20 -04:00
sbus	[SPARC64]: Use drivers/Kconfig	2005-08-30 21:46:19 -07:00
scsi	[libata] minor fixes	2005-09-08 23:07:29 -04:00
serial	[PATCH] txx9 serial update	2005-09-09 13:57:27 -07:00
sh	[PATCH] Driver Core: drivers/s390/net/qeth_sys.c - drivers/usb/gadget/pxa2xx_udc.c: update device attribute callbacks	2005-06-20 15:15:35 -07:00
sn	[PATCH] ioc4: PCI bus speed detection	2005-06-21 18:46:32 -07:00
tc
telephony	[PATCH] pcmcia: remove references to pcmcia/version.h	2005-07-07 18:24:07 -07:00
usb	Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6	2005-09-08 17:21:02 -07:00
video	[PATCH] framebuffer: bit_putcs() optimization for 8x* fonts	2005-09-09 13:58:02 -07:00
w1	[PATCH] w1_ds2433: Added crc16 protection and read caching.	2005-09-08 14:41:27 -07:00
zorro	[PATCH] Driver Core: drivers/usb/input/aiptek.c - drivers/zorro/zorro-sysfs.c: update device attribute callbacks	2005-06-20 15:15:35 -07:00
Kconfig	[MFD] Add multimedia communication port core support	2005-08-18 10:06:59 +01:00
Makefile	Auto-update from upstream	2005-08-29 17:02:17 -04:00