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<body><span class="vcard"><a class="email" href="mailto:jianx.zhou@intel.com" title="zhoujian <jianx.zhou@intel.com>"> <span class="fn">zhoujian</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [IVB/BYT-M/BDW] Unigine-Heaven4.0 on IVB/BYT-M/BDW performance is slower(↓2x) ) than HSW_GT3e."
href="https://bugs.freedesktop.org/show_bug.cgi?id=82808">bug 82808</a>
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<table border="1" cellspacing="0" cellpadding="8">
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>NEEDINFO
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<td>NEW
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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [IVB/BYT-M/BDW] Unigine-Heaven4.0 on IVB/BYT-M/BDW performance is slower(↓2x) ) than HSW_GT3e."
href="https://bugs.freedesktop.org/show_bug.cgi?id=82808#c4">Comment # 4</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [IVB/BYT-M/BDW] Unigine-Heaven4.0 on IVB/BYT-M/BDW performance is slower(↓2x) ) than HSW_GT3e."
href="https://bugs.freedesktop.org/show_bug.cgi?id=82808">bug 82808</a>
from <span class="vcard"><a class="email" href="mailto:jianx.zhou@intel.com" title="zhoujian <jianx.zhou@intel.com>"> <span class="fn">zhoujian</span></a>
</span></b>
<pre>
(In reply to <a href="show_bug.cgi?id=82808#c3">comment #3</a>)
<span class="quote">> > Unigine-Heaven4.0 on IVB/BYT-M/BDW very slower(↓2x) than HSW_GT3e, this issue doesn’t exist on Unigine-Heaven3.0.
>
> Heaven (v4) is memory BW bound and GT3e has more of that (with its 128MB L4)
> than IVB/BYT/BDW devices have have currently so Heaven being clearly faster
> on it is to be expeced.
>
> Are you saying that Heaven v3 is same speed on GT3e as it's on BYT? If it's
> system memory bandwidth bound (= memory accesses don't fit into L4), I can
> buy it being fairly same speed as on IVB & BDW as the devices we currently
> have, have same bandwidth. However, if BYT is same speed, that is
> definitely wrong.</span >
I didn't mean that.Both of them are slower on IVB/BYT-M/BDW comparing with they
are on HSW-GT3e. What I wanted to express is that Heaven v4 is too slow.
besides, Heaven v3 is faster than Heaven v4.</pre>
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