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kolibrios/programs/system/latency/trunk/latency.asm
Artem Jerdev (art_zh) 5e3125f462 system latencies monitor presented
git-svn-id: svn://kolibrios.org@3957 a494cfbc-eb01-0410-851d-a64ba20cac60
2013-09-30 21:12:19 +00:00

136 lines
2.4 KiB
NASM

;; CPU latency test -- Art J ;;
use32 ;
org 0x0 ;
db 'MENUET01' ;
dd 0x01 ;
dd START ;
dd I_END ;
dd 0x4000 ;
dd 0x4000 ;
dd 0x0 ;
dd 0x0 ;
include '..\..\..\macros.inc' ;
START:
call draw_win
rdtsc
main_loop:
mov ecx, eax ; ecx = previous timestamp
rdtsc ; new timestamp
cmp eax, ecx
jb main_loop ; tsc overflow?
mov ebx, eax ;
sub ebx, ecx ; net clocks
cmp ebx, [max]
jb @f
mov [max], ebx
; mcall 13, 200*65536+60, 500*65536+20, 0x00EEEEEEEE
; mcall 47, 0x800A0001, max, 200*65536+501
@@:
push ebx
fldlg2 ; lg(2)
fild dword[esp]
fyl2x
fimul [yscale]
fistp dword[esp]
pop ebx ; ebx = lg(time/100) * yscale
sub ebx, [yscale]
sub ebx, [yscale]
jb main_loop
cmp ebx, 512
ja main_loop
mov edx, [ebx*4+data_]
inc edx
mov [ebx*4+data_], edx
push edx
fld qword[xscale]
fild dword[esp]
fyl2x
fistp dword[esp]
pop edx ; edx = log2(counts) * xscale
cmp edx, 300
jge main_loop
shl ebx, 12 ; 1 line = 1024 pixels
add ebx, 1024*4*30 + 17*4
mov dword[ebx + edx*4 + 0xFE000000], 0x00703030
jmp main_loop
;------------------------------------------------
draw_win:
;------------------------------------------------
mcall 12, 1
mcall 0, 300, 590, 0x14BAA6A0,,title
; -----------------------------------------------------------------
mov ecx, [yscale]
shl ecx, 16
mov cx, word[yscale]
mov [ytick], ecx
mcall 38, 16*65536+16, 30*65536+530, 0
mov cx, 30
@@:
mcall , 14*65536+16
add ecx, [ytick]
cmp cx, 512
jb @b
mcall 4, 0x00100230, 0x80000000, advise
mov eax, 47
mov ebx, 0x00010000
mov ecx, 2
mov edx, 7*65536+30
mov esi, 0
@@:
mcall
add dx, word[yscale]
inc ecx
cmp dx, 512
jb @b
mcall 40, 0xC0000000 ; ignore sys messages
mcall 12, 2
ret
align 4
;-------------------------------------------------
data_ dd 512 dup 1 ; hysto
max dd 0
xscale dq 7.2
yscale dd 80
ytick dd 0
title db ' Latency test ',0
advise db 'Use CPU process manager to close this window)',0
I_END: ; end of program
rd 256
align 256
st_0: