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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Compilation is *very* slow."
href="https://bugs.freedesktop.org/show_bug.cgi?id=87103">87103</a>
</td>
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<th>Summary</th>
<td>Compilation is *very* slow.
</td>
</tr>
<tr>
<th>Product</th>
<td>Mesa
</td>
</tr>
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<th>Version</th>
<td>10.1
</td>
</tr>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
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<th>OS</th>
<td>Linux (All)
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>Drivers/DRI/i965
</td>
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<th>Assignee</th>
<td>idr@freedesktop.org
</td>
</tr>
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<th>Reporter</th>
<td>gonzhauser@yahoo.de
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-3d-bugs@lists.freedesktop.org
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</tr></table>
<p>
<div>
<pre>Version: Mesa 10.1.3 Ubuntu package
Chipset: HM87
System Architecture: Ubuntu x86 64 bit.
xf86-video-intel: 2:2.99.910-ubuntu1.3
xserver: 1.15.1
mesa: 10.1.3
libdrm: 2.4.52
kernel: 3.8.11
Distribution: Ubuntu
Machine: Acer C720 with Celeron 2955U.
Display connector: Intel Haswell Integrated graphics controller
The following shader takes minutes to compile:
const int n = 49;
void prod(in vec4 a[n], in vec4 b[n], out vec4 result[4]) {
result[0] = vec4(0);
for(int i = 0; i < n; ++i) {
result[0] += a[i] * b[i];
}
It works with n = 26, but from n = 27 it is very slow.
I can't upgrade because intel-linux-graphics-installer bails out with
No LSB modules are available.
polkit: Fetching org.01.linuxgraphics.installer permissions...
diagnostics-view.c/diagnostics_view_start: Running diagnostic Checking if Intel
graphics card available...
main-window.c/on_diagnostics_finished: Diagnostics finished with an error
Probably because I'm running a chroot Ubuntu on a Chromebook.</pre>
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