On 11/19/10 19:15, Andriy Gapon wrote:
on 19/11/2010 20:02 Sean Bruno said the following:
What I've seen is that the long pause occurs between the display of the
SMAP (boot verbose) and the copywrite notice. The delay gets worse with
larger memory maps.
How much memory do we talk about?
24 GB. I think I saw reports of larger memories so I don't think this is
critical (unless something's wrong).
I wonder if it could be the code that touches each page to test its usability.
Some printf-profiling could be enlightening.
No printf debugging this time, I don't have physical access to it for
the weekend (but have ssh).
Here's the CPU topology (correctly parsed, thankfully :) ), if someone's
interested:
biggie# sysctl kern.sched.topology_spec
kern.sched.topology_spec: <groups>
<group level="1" cache-level="0">
<cpu count="24" mask="0xffffff">0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23</cpu>
<children>
<group level="2" cache-level="2">
<cpu count="12" mask="0xfff">0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11</cpu>
<children>
<group level="3" cache-level="1">
<cpu count="2" mask="0x3">0, 1</cpu>
<flags><flag name="THREAD">THREAD group</flag><flag
name="SMT">SMT group</flag></flags>
</group>
<group level="3" cache-level="1">
<cpu count="2" mask="0xc">2, 3</cpu>
<flags><flag name="THREAD">THREAD group</flag><flag
name="SMT">SMT group</flag></flags>
</group>
<group level="3" cache-level="1">
<cpu count="2" mask="0x30">4, 5</cpu>
<flags><flag name="THREAD">THREAD group</flag><flag
name="SMT">SMT group</flag></flags>
</group>
<group level="3" cache-level="1">
<cpu count="2" mask="0xc0">6, 7</cpu>
<flags><flag name="THREAD">THREAD group</flag><flag
name="SMT">SMT group</flag></flags>
</group>
<group level="3" cache-level="1">
<cpu count="2" mask="0x300">8, 9</cpu>
<flags><flag name="THREAD">THREAD group</flag><flag
name="SMT">SMT group</flag></flags>
</group>
<group level="3" cache-level="1">
<cpu count="2" mask="0xc00">10, 11</cpu>
<flags><flag name="THREAD">THREAD group</flag><flag
name="SMT">SMT group</flag></flags>
</group>
</children>
</group>
<group level="2" cache-level="2">
<cpu count="12" mask="0xfff000">12, 13, 14, 15, 16, 17, 18, 19, 20,
21, 22, 23</cpu>
<children>
<group level="3" cache-level="1">
<cpu count="2" mask="0x3000">12, 13</cpu>
<flags><flag name="THREAD">THREAD group</flag><flag
name="SMT">SMT group</flag></flags>
</group>
<group level="3" cache-level="1">
<cpu count="2" mask="0xc000">14, 15</cpu>
<flags><flag name="THREAD">THREAD group</flag><flag
name="SMT">SMT group</flag></flags>
</group>
<group level="3" cache-level="1">
<cpu count="2" mask="0x30000">16, 17</cpu>
<flags><flag name="THREAD">THREAD group</flag><flag
name="SMT">SMT group</flag></flags>
</group>
<group level="3" cache-level="1">
<cpu count="2" mask="0xc0000">18, 19</cpu>
<flags><flag name="THREAD">THREAD group</flag><flag
name="SMT">SMT group</flag></flags>
</group>
<group level="3" cache-level="1">
<cpu count="2" mask="0x300000">20, 21</cpu>
<flags><flag name="THREAD">THREAD group</flag><flag
name="SMT">SMT group</flag></flags>
</group>
<group level="3" cache-level="1">
<cpu count="2" mask="0xc00000">22, 23</cpu>
<flags><flag name="THREAD">THREAD group</flag><flag
name="SMT">SMT group</flag></flags>
</group>
</children>
</group>
</children>
</group>
</groups>
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