After assignment of value "Sync to VBlank"=1, 3D programs can be started only once...
Because, restart 3D programs, increases loading the CPU states (system).
And if "Vsync" to establish in "Beryl", in the beginning works of the program, loading of system is not great, but after a while, loading of system (for example, at rotation of a cube) to become very high. More often it can be observed if to restart "beryl", not restarting "Xorg".
1. Right after loadings Xorg:
Code:
$ nvclock -q vsync
Current value for option 'Sync to VBlank': 0
$ glxgears #(From the first xterm)
11537 frames in 5.0 seconds = 2307.267 FPS
11560 frames in 5.0 seconds = 2311.830 FPS
11582 frames in 5.0 seconds = 2316.264 FPS
$ vmstat -w1 #(From the second xterm)
procs memory page disks faults cpu
r b w avm fre flt re pi po fr sr ad2 ad4 in sy cs us sy id
2 1 0 221536 804152 826 6 2 0 686 0 0 0 1741 52406 27808 33 16 52
0 1 0 221536 804152 31 0 0 0 0 0 0 0 1163 318 2255 0 0 100
0 1 0 221536 804152 29 0 0 0 0 0 0 0 1029 1013 2115 0 1 99
0 1 0 221536 804152 29 0 0 0 16 0 0 8 1004 344 2071 0 1 99
1 1 0 241996 792800 2640 0 0 0 121 0 0 0 996 4256 2071 1 7 92
1 1 0 242824 784696 2460 0 0 0 0 0 0 0 1018 393595 347514 26 74 0 <run glxgears
1 1 0 242824 784692 30 0 0 0 0 0 0 1 1010 416845 377049 25 75 0
1 1 0 242824 784692 30 0 0 0 0 0 0 0 995 417331 377959 22 78 0
<...>skip 12 similar lines<...>
1 1 0 242824 784692 30 0 0 0 0 0 0 0 1372 402471 360792 20 80 0
1 1 0 242824 784684 32 0 0 0 0 0 0 1 1320 404773 358236 19 81 0
1 1 0 242824 784684 30 0 0 0 0 0 0 0 1259 403295 359820 22 78 0
0 1 0 221544 804132 47 0 0 0 4863 0 0 0 1231 105908 92286 13 23 65 <stop glxgears
0 1 0 221544 804132 120 0 0 0 0 0 0 0 1159 2211 2524 0 3 97
0 1 0 221544 804132 29 0 0 0 0 0 0 0 978 262 1984 0 1 99
0 1 0 221544 804132 29 0 0 0 0 0 0 0 1170 456 2256 0 2 98
2. Activating "Vsync" and load glxgears again:
Code:
$ nvclock -a vsync=1
$ glxgears
378 frames in 5.0 seconds = 75.518 FPS
375 frames in 5.0 seconds = 75.000 FPS
376 frames in 5.0 seconds = 75.000 FPS
375 frames in 5.0 seconds = 74.803 FPS
$ vmstat -w1
procs memory page disks faults cpu
r b w avm fre flt re pi po fr sr ad2 ad4 in sy cs us sy id
0 1 11 243372 784076 803 6 2 0 666 0 0 0 1722 52267 28317 32 16 53 <run glxgears
0 1 0 243372 784068 34 0 0 0 0 0 0 0 1119 1827 4431 1 6 93
0 1 0 243372 784068 30 0 0 0 0 0 0 0 1112 1761 4997 1 5 93
0 1 0 243372 784068 30 0 0 0 0 0 0 0 1110 1802 4993 1 5 95
0 1 0 243372 784068 31 0 0 0 0 0 0 0 1095 1795 4307 1 4 95
0 1 0 243372 784064 30 0 0 0 0 0 0 1 1081 1822 4953 1 6 93
0 1 0 243372 784064 30 0 0 0 0 0 0 0 1079 1766 4302 1 5 94
0 1 0 243372 784064 30 0 0 0 0 0 0 6 1101 1788 5000 1 6 93
0 1 0 243372 784064 30 0 0 0 0 0 0 0 1081 1749 4951 1 6 93
0 1 0 243372 784064 30 0 0 0 0 0 0 0 1072 1841 4903 1 8 91
0 1 0 243372 784064 142 0 0 0 94 0 0 0 1387 2347 5397 1 7 92
16 1 0 243372 784064 30 0 0 0 0 0 0 0 1211 1801 5155 1 7 92
0 1 0 243372 784064 30 0 0 0 0 0 0 0 1145 2573 5181 1 8 91
0 1 0 243372 784064 30 0 0 0 0 0 0 0 1421 4987 5990 1 6 93
0 1 0 243372 784068 30 0 0 0 1 0 0 1 1487 5427 5953 2 5 93
0 1 0 243372 784068 30 0 0 0 0 0 0 0 1475 7887 6226 1 10 89
0 1 0 243372 784068 30 0 0 0 0 0 0 0 1069 1940 4977 1 5 93
1 1 1 243372 784068 30 0 0 0 0 0 0 0 1072 2226 4200 4 7 88
0 1 0 235872 791572 30 0 0 0 1876 0 0 7 1339 3440 5292 13 8 79
0 1 0 222092 803516 47 0 0 0 2999 0 0 10 1051 1785 3045 2 4 93
0 1 0 222092 803512 29 0 0 0 0 0 3 1 994 268 2025 1 3 96
0 1 0 222092 803512 29 0 0 0 0 0 0 0 1937 1076 3386 0 3 97
1 1 0 222092 803512 29 0 0 0 0 0 1 0 1008 255 2044 0 2 98
0 1 0 222092 803512 29 0 0 0 0 0 0 0 1017 291 2060 0 1 99 <stop glxgears
3. Restarts "glxgaers" cause high loading CPU state (system).
Code:
$ glxgears
379 frames in 5.0 seconds = 75.667 FPS
375 frames in 5.0 seconds = 75.000 FPS
375 frames in 5.0 seconds = 75.000 FPS
372 frames in 5.0 seconds = 74.205 FPS
$ vmstat -w1
procs memory page disks faults cpu
r b w avm fre flt re pi po fr sr ad2 ad4 in sy cs us sy id
0 1 1 222076 803512 793 6 2 0 658 0 0 0 1715 51640 28005 31 15 53
0 1 0 222076 803508 31 0 0 0 0 0 0 1 1202 2052 2610 0 7 93
0 1 0 222076 803508 29 0 0 0 0 0 0 0 1178 2150 2539 0 2 98
0 1 0 222076 803508 29 0 0 0 0 0 0 0 1001 331 2022 0 2 98
0 1 0 222076 803508 29 0 0 0 0 0 0 0 1045 450 2097 0 1 99
0 1 0 222076 803508 29 0 0 0 0 0 0 0 1183 247 2280 0 1 99
1 1 0 243372 784064 5068 0 0 0 121 0 0 0 1068 65899 2361 4 39 57<run glxgears
1 1 0 243372 784056 32 0 0 0 0 0 0 4 1092 195866 2529 10 90 0
1 1 0 243372 784048 32 0 0 0 0 0 0 0 1095 196226 2506 12 88 0
1 1 0 243372 784044 31 0 0 0 0 0 0 0 1084 196337 2467 7 93 0
1 1 0 243372 784044 30 0 0 0 0 0 0 0 1105 196292 2550 7 93 0
1 1 0 243372 784044 31 0 0 0 0 0 0 0 1060 196383 2461 7 93 0
1 1 0 243372 784044 30 0 0 0 0 0 0 0 1075 196514 2502 5 95 0
1 1 0 243372 784044 30 0 0 0 8 0 0 6 1077 195906 2479 11 89 0
1 1 0 243372 784044 30 0 0 0 0 0 0 0 1076 196557 2490 10 90 0
1 1 0 243372 784044 30 0 0 0 0 0 0 6 1057 196147 2462 13 87 0
1 1 0 243372 784040 30 0 0 0 0 0 0 1 1053 196261 2448 13 87 0
1 1 0 243372 784040 30 0 0 0 4 0 1 0 1055 196312 2455 11 89 0
1 1 0 243372 784040 30 0 0 0 0 0 0 0 1059 196508 2451 6 94 0
1 1 0 243372 784044 30 0 0 0 1 0 3 1 1393 194328 3936 7 93 0
1 1 0 243372 784044 30 0 0 0 0 0 0 0 1382 194887 3905 10 90 0
1 1 0 243372 784044 30 0 0 0 0 0 0 0 1390 194744 3897 6 94 0
1 1 0 243372 784044 30 0 0 0 0 0 0 0 1347 194539 3679 8 92 0
1 1 0 243372 784044 31 0 0 0 0 0 0 0 1479 193761 4263 14 86 0
2 1 0 243372 784044 30 0 0 0 0 0 0 0 1084 183050 2478 12 88 0
1 1 0 235872 791548 30 0 0 0 1876 0 0 0 1217 195588 3033 10 90 0<stop glxgears
1 1 0 235872 791548 30 0 0 0 0 0 0 0 1067 195043 2380 8 92 0
0 1 0 222092 803492 47 0 0 0 2987 0 0 0 1005 18589 2853 3 9 88
0 1 0 222092 803492 29 0 0 0 0 0 0 0 1129 1906 2405 1 0 99
0 1 0 222092 803492 29 0 0 0 0 0 0 0 1037 301 2079 0 1 99
0 1 0 222092 803492 29 0 0 0 0 0 0 0 1051 400 2125 0 1 99
0 1 0 222092 803484 29 0 0 0 0 0 0 1 1030 285 2078 0 2 98
Code:
$ nvclock -i
-- General info --
Card: nVidia Geforce 7600GS
Architecture: NV4B B1
PCI id: 0x392
GPU clock: 401.142 MHz
Bustype: PCI-Express
-- Pipeline info --
Pixel units: 3x4 (011b)
Vertex units: 5x1 (11111b)
HW masked units: None
SW masked units: None
-- Memory info --
Amount: 256 MB
Type: 128 bit DDR
Clock: 796.500 MHz
-- PCI-Express info --
Current Rate: 16X
Maximum rate: 16X
-- Sensor info --
Sensor: GPU Internal Sensor
GPU temperature: 48C
-- VideoBios information --
Version: 05.73.22.50.00
Signon message: GeForce 7600 GS VGA BIOS
Performance level 0: gpu 400MHz/memory 800MHz/1.15V/100%
Performance level 1: gpu 400MHz/memory 800MHz/1.15V/100%
VID mask: 0
Voltage level 0: 1.15V, VID: 0
$ pkg_info -E nvidia-driver\*
nvidia-driver-1.0.9746_5
$ uname -a
FreeBSD inspirra.localdomain 6.2-STABLE FreeBSD 6.2-STABLE #1: Thu Jul 26 06:48:39 MSD 2007 root@inspirra.localdomain:/SHARED/obj.inspirra/usr/src/sys/INSPIRRA i386
$ Xorg -version
X Window System Version 7.2.0
P.S.
I am sorry for my English. I am compelled to use the electronic translator
07-31-07, 12:06 PM
Greater loading CPU state (system) after activation "Sync to VBlank".
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