Ralf Baechle 585fa72493 [MIPS] Retire flush_icache_page from mm use. ... On the 34K the redundant cache operations were causing excessive stalls resulting in realtime code running on the second VPE missing its deadline. For all other platforms this patch is just a significant performance improvment as illustrated by below benchmark numbers. Processor, Processes - times in microseconds - smaller is better ------------------------------------------------------------------------------ Host OS Mhz null null open slct sig sig fork exec sh call I/O stat clos TCP inst hndl proc proc proc --------- ------------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 25Kf 2.6.18-rc4 533 0.49 1.16 7.57 33.4 30.5 1.34 12.4 5497 17.K 54.K 25Kf 2.6.18-rc4-p 533 0.49 1.16 6.68 23.0 30.7 1.36 8.55 5030 16.K 48.K 4Kc 2.6.18-rc4 80 4.21 15.0 131. 289. 261. 16.5 258. 18.K 70.K 227K 4Kc 2.6.18-rc4-p 80 4.34 13.1 128. 285. 262. 18.2 258. 12.K 52.K 176K 34Kc 2.6.18-rc4 40 5.01 14.0 61.6 90.0 477. 17.9 94.7 29.K 108K 342K 34Kc 2.6.18-rc4-p 40 4.98 13.9 61.2 89.7 475. 17.6 93.7 8758 44.K 158K BCM1480 2.6.18-rc4 700 0.28 0.60 3.68 5.92 16.0 0.78 5.08 931. 3163 15.K BCM1480 2.6.18-rc4-p 700 0.28 0.61 3.65 5.85 16.0 0.79 5.20 395. 1464 8385 TX49-16K 2.6.18-rc3 197 0.73 2.41 19.0 37.8 82.9 2.94 17.5 4438 14.K 56.K TX49-16K 2.6.18-rc3-p 197 0.73 2.40 19.9 36.3 82.9 2.94 23.4 2577 9103 38.K TX49-32K 2.6.18-rc3 396 0.36 1.19 6.80 11.8 41.0 1.46 8.17 2738 8465 32.K TX49-32K 2.6.18-rc3-p 396 0.36 1.19 6.82 10.2 41.0 1.46 8.18 1330 4638 18.K Original patch by me with enhancements by Atsushi Nemoto. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>		2006-09-27 13:37:34 +01:00
..
c-r3k.c	[MIPS] Retire flush_icache_page from mm use.	2006-09-27 13:37:34 +01:00
c-r4k.c	[MIPS] Retire flush_icache_page from mm use.	2006-09-27 13:37:34 +01:00
c-sb1.c	[MIPS] Retire flush_icache_page from mm use.	2006-09-27 13:37:34 +01:00
c-tx39.c	[MIPS] Retire flush_icache_page from mm use.	2006-09-27 13:37:34 +01:00
cache.c	[MIPS] Retire flush_icache_page from mm use.	2006-09-27 13:37:34 +01:00
cerr-sb1.c	Remove obsolete #include <linux/config.h>	2006-06-30 19:25:36 +02:00
cex-gen.S
cex-sb1.S	[MIPS] Sibyte: #if CONFIG_* doesn't fly.	2006-02-21 16:58:23 +00:00
dma-coherent.c	Remove obsolete #include <linux/config.h>	2006-06-30 19:25:36 +02:00
dma-ip27.c	[PATCH] gfp_t: dma-mapping (mips)	2005-10-28 08:16:48 -07:00
dma-ip32.c	[PATCH] s/;;/;/g	2006-03-24 07:33:24 -08:00
dma-noncoherent.c	Remove obsolete #include <linux/config.h>	2006-06-30 19:25:36 +02:00
extable.c
fault.c	[MIPS] MT: Improved multithreading support.	2006-04-19 04:14:28 +02:00
highmem.c	Remove obsolete #include <linux/config.h>	2006-06-30 19:25:36 +02:00
init.c	[PATCH] reduce MAX_NR_ZONES: fix MAX_NR_ZONES array initializations	2006-09-26 08:48:46 -07:00
ioremap.c	[PATCH] mm: init_mm without ptlock	2005-10-29 21:40:40 -07:00
Makefile	[MIPS] MIPS32/MIPS64 secondary cache management	2006-06-29 21:10:52 +01:00
pg-r4k.c	[MIPS] Treat R14000 like R10000.	2006-06-01 00:28:35 +01:00
pg-sb1.c	Remove obsolete #include <linux/config.h>	2006-06-30 19:25:36 +02:00
pgtable-32.c	Remove obsolete #include <linux/config.h>	2006-06-30 19:25:36 +02:00
pgtable-64.c
pgtable.c	[MIPS] sparsemem: fix crash in show_mem	2006-07-13 21:26:22 +01:00
sc-ip22.c
sc-mips.c	[MIPS] MIPS32/MIPS64 S-cache fix and cleanup	2006-06-29 21:10:54 +01:00
sc-r5k.c
sc-rm7k.c	[MIPS] Use __ffs() instead of ffs() for waybit calculation.	2006-04-19 04:14:30 +02:00
tlb-r3k.c
tlb-r4k.c	Remove obsolete #include <linux/config.h>	2006-06-30 19:25:36 +02:00
tlb-r8k.c	Remove obsolete #include <linux/config.h>	2006-06-30 19:25:36 +02:00
tlbex-fault.S
tlbex.c	[MIPS] Print out TLB handler assembly for debugging.	2006-07-13 21:26:16 +01:00