Thursday Apr 02, 2009

The new machine

Doop-de-do, logging in to the new machine.

[stgreen@hogwarts 13:38:21 ~]$ 

Huh. I wonder how many processors this machine has.

[stgreen@hogwarts 13:38:22 ~]$ /usr/sbin/psrinfo -v
Status of virtual processor 0 as of: 04/02/2009 13:38:26
  on-line since 03/31/2009 14:56:19.
  The sparcv9 processor operates at 1414 MHz,
        and has a sparcv9 floating point processor.
Status of virtual processor 1 as of: 04/02/2009 13:38:26
  on-line since 03/31/2009 14:56:22.
  The sparcv9 processor operates at 1414 MHz,
        and has a sparcv9 floating point processor.
Status of virtual processor 2 as of: 04/02/2009 13:38:26
  on-line since 03/31/2009 14:56:22.
  The sparcv9 processor operates at 1414 MHz,
        and has a sparcv9 floating point processor.

[...Many lines deleted...]

Status of virtual processor 253 as of: 04/02/2009 13:38:27
  on-line since 03/31/2009 14:56:23.
  The sparcv9 processor operates at 1414 MHz,
        and has a sparcv9 floating point processor.
Status of virtual processor 254 as of: 04/02/2009 13:38:27
  on-line since 03/31/2009 14:56:23.
  The sparcv9 processor operates at 1414 MHz,
        and has a sparcv9 floating point processor.
Status of virtual processor 255 as of: 04/02/2009 13:38:27
  on-line since 03/31/2009 14:56:23.
  The sparcv9 processor operates at 1414 MHz,
        and has a sparcv9 floating point processor.

OK. That's a lot of processors there. I wonder how much memory it has.

[stgreen@hogwarts 13:38:27 ~]$ /usr/sbin/prtconf | head -2
System Configuration:  Sun Microsystems  sun4v
Memory size: 261856 Megabytes

Uh, wow. That's a lot of RAM. I wonder how much disk space.

[stgreen@hogwarts 13:43:49 ~]$ df -hl 
Filesystem             size   used  avail capacity  Mounted on
/dev/dsk/c0t0d0s0       15G    10G   4.6G    69%    /
swap                   161G   414M   161G     1%    /tmp
swap                   161G    56K   161G     1%    /var/run
scratch                134G    60G    74G    45%    /scratch

Heh. So I guess at start up we should just cache the disk then, right?

Anyone have any single instance, multi-threaded search scalability tests they want me to try?

About

This is Stephen Green's blog. It's about the theory and practice of text search engines, with occasional forays into recommendation and other technologies that can use a good text search engine. Steve is the PI of the Information Retrieval and Machine Learning project in Oracle Labs.

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