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Mongo/journal relocation to NVRAM

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This page is a disaster, do we even want to clean this up? It's all stale benchmarks anyway :-\

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Table I. Mongo comparative results for reiserfs variations (standard journal, journal on external device (NVRAM)).

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SYS ="linux

2.4.19-rc1+01-relocation4.patch+02-commit_super-8-relocation.patch+03-data-logging-24.patch"
FSTYPE=reiserfs
WRITE_BUFFER=4096
DEV=/dev/sdd1
REP_COUNTER=3
GAMMA=0.0
DIR=/mnt/diskd
NPROC=3
MOUNT_OPTIONS=data=journal
JOURNAL_SIZE=8193
SYNC=off
HARDWARE: Dual Pentium III (600 Mhz), 256M RAM, DEV - 9GB SCSI partition, External log device /dev/umem - 128M PCI Memory Module MM-5415CN </td></tr>

A.
B.JOURNAL_DEV=/dev/umem
<b>#6:FILE_SIZE=200000 BYTES=800000000 </b></td></tr>
</td> <b>REAL_TIME</b></td> <b>CPU_TIME</b></td> <b>DF</b></td>

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</td> <b>A</b></td><b>B/A </b></td> <b>A</b></td><b>B/A </b></td> <b>A</b></td><b>B/A </b></td>

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<b>Create</b></td> 207.78</td> 0.951 </td>

</tt></td>

83.44</td> 0.962 </td>

</tt></td>

2383256</td> 1.0 </td>

</tt></td> </tr>

<b>Copy</b></td> 379.95</td> 0.871 </td>

</tt></td>

111.03</td> 0.994 </td>

</tt></td>

4766576</td> 1.0 </td>

</tt></td> </tr>

<b>Append</b></td> 499.41</td> 0.917 </td>

</tt></td>

104.37</td> 1.013 </td>

</tt></td>

7106336</td> 1.0 </td>

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<b>Modify</b></td> 555.24</td> 0.980 </td>

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11.76</td> 1.003 </td>

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7106468</td> 1.0 </td>

</tt></td> </tr>

<b>Overwrite</b></td> 1073.93</td> 0.874 </td>

</tt></td>

145.34</td> 0.970 </td>

</tt></td>

7106504</td> 1.0 </td>

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<b>Read</b></td> 984.94</td> 0.981 </td>

</tt></td>

55.73</td> 1.001 </td>

</tt></td>

7106504</td> 1.0 </td>

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<b>Delete</b></td> 14.64</td> 0.997 </td>

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13.94</td> 1.014 </td>

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0</td> -</td>

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Produced by <a href=http://namesys.com/mongo>Mongo</a> benchmark suite.</td></tr>

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