[Bug 87131] [PNV regression] igt/gem_exec_lut_handle takes more than 10 minutes

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87131

--- Comment #6 from ye.tian <yex.tian at intel.com> ---
Tested on the latest fixed kernel, it takes 13+ minutes.

output:
-------------------
root at x-pnv1:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# time
./gem_exec_lut_handle
IGT-Version: 1.10-g1f6a64e (x86_64) (Linux:
4.0.0-rc6_drm-intel-fixes_840a1c_20150403+ x86_64)
relocation: buffers=   1: old=  12972 + 215.4*reloc, lut=  12751 + 215.1*reloc
(ns)
relocation: buffers=   2: old=  13087 + 217.3*reloc, lut=  13860 + 215.0*reloc
(ns)
relocation: buffers=   4: old=  16865 + 216.3*reloc, lut=  17707 + 214.9*reloc
(ns)
relocation: buffers=   8: old=  19819 + 217.5*reloc, lut=  19344 + 217.1*reloc
(ns)
relocation: buffers=  16: old=  26013 + 225.4*reloc, lut=  26422 + 220.2*reloc
(ns)
relocation: buffers=  32: old=  46689 + 237.7*reloc, lut=  45972 + 233.7*reloc
(ns)
relocation: buffers=  64: old=  87659 + 257.6*reloc, lut=  84603 + 252.0*reloc
(ns)
relocation: buffers= 128: old= 168278 + 276.7*reloc, lut= 163484 + 272.5*reloc
(ns)
relocation: buffers= 256: old= 377065 + 316.1*reloc, lut= 366626 + 300.5*reloc
(ns)
relocation: buffers= 512: old=1194388 + 137.7*reloc, lut=1164111 + 189.0*reloc
(ns)
relocation: buffers=1024: old=2440147 + 375.8*reloc, lut=2417108 + 306.7*reloc
(ns)
relocation: buffers=2048: old=5664382 + 614.0*reloc, lut=5624147 + 406.1*reloc
(ns)
skip-relocs: buffers=   1: old=   7842 + 49.6*reloc, lut=   7816 + 46.1*reloc
(ns)
skip-relocs: buffers=   2: old=   8569 + 49.6*reloc, lut=   8663 + 46.0*reloc
(ns)
skip-relocs: buffers=   4: old=   9556 + 49.6*reloc, lut=   9575 + 46.1*reloc
(ns)
skip-relocs: buffers=   8: old=  11805 + 49.6*reloc, lut=  11644 + 46.2*reloc
(ns)
skip-relocs: buffers=  16: old=  16352 + 49.7*reloc, lut=  16308 + 46.2*reloc
(ns)
skip-relocs: buffers=  32: old=  29442 + 52.1*reloc, lut=  28865 + 47.8*reloc
(ns)
skip-relocs: buffers=  64: old=  61269 + 65.5*reloc, lut=  60698 + 58.3*reloc
(ns)
skip-relocs: buffers= 128: old= 119237 + 80.7*reloc, lut= 117896 + 73.0*reloc
(ns)
skip-relocs: buffers= 256: old= 236430 + 98.5*reloc, lut= 233710 + 88.2*reloc
(ns)
skip-relocs: buffers= 512: old= 594453 + 144.7*reloc, lut= 586675 + 116.5*reloc
(ns)
skip-relocs: buffers=1024: old=2416857 + 256.1*reloc, lut=2387079 + 188.5*reloc
(ns)
skip-relocs: buffers=2048: old=5653596 + 466.5*reloc, lut=5610695 + 287.8*reloc
(ns)
no-relocs: buffers=   1: old=   8168 + 0.2*reloc, lut=   8378 + 0.1*reloc (ns)
no-relocs: buffers=   2: old=   8252 + 0.2*reloc, lut=   8338 + 0.2*reloc (ns)
no-relocs: buffers=   4: old=   9286 + 0.2*reloc, lut=   9216 + 0.2*reloc (ns)
no-relocs: buffers=   8: old=  11238 + 0.4*reloc, lut=  11268 + 0.1*reloc (ns)
no-relocs: buffers=  16: old=  15609 + 0.1*reloc, lut=  15421 + 0.1*reloc (ns)
no-relocs: buffers=  32: old=  27898 + 0.2*reloc, lut=  27345 + 0.2*reloc (ns)
no-relocs: buffers=  64: old=  58729 + 0.1*reloc, lut=  58143 + 0.1*reloc (ns)
no-relocs: buffers= 128: old= 114477 + 0.1*reloc, lut= 112812 + 0.3*reloc (ns)
no-relocs: buffers= 256: old= 227536 + 0.2*reloc, lut= 224279 + 0.3*reloc (ns)
no-relocs: buffers= 512: old= 569191 + 0.9*reloc, lut= 559735 + 1.2*reloc (ns)
no-relocs: buffers=1024: old=2362485 + 3.7*reloc, lut=2327493 + 4.8*reloc (ns)
no-relocs: buffers=2048: old=5496344 + -2.3*reloc, lut=5443557 + -2.0*reloc
(ns)
SUCCESS (801.260s)

real    13m21.287s
user    0m3.221s
sys     13m16.822s

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