Benchmarks MySQL: Hyperthreading?

What can hyperthreading do for MySQL performance?

conc lev Dual Xeon 3.06 1 MB L3 no HT Dual Xeon 3.06 1 MB L3 HT HT Speedup
1 106 110 4%
2 158 175 11%
5 193 206 7%
10 213 217 2%
20 205 218 6%
35 206 232 13%
50 203 222 10%

Amazingly, Hyperthreading pushes performance quite a bit higher. Although, once again, the higher margin of error blurs the picture a bit. We measure a 6% to 10% speed increase. Let us see if the Xeon Nocona is any different.

conc lev Dual Xeon 3.6 no HT Dual Xeon 3.6 HT HT Speedup
1 127 127 0%
2 189 191 1%
5 215 239 11%
10 235 249 6%
20 238 251 5%
35 237 259 9%
50 236 251 6%

Again, when we concentrate on row 20 to 50, where the margin of error is a bit lower, we see that Nocona benefits a little less from Hyperthreading than the older Xeons despite being equipped with a slightly more advanced version.

Benchmarks MySQL: Single versus Dual Final Conclusion
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  • smn198 - Thursday, December 2, 2004 - link

    Would love to see how MS SQL performs in similar tests.
  • mrVW - Thursday, December 2, 2004 - link

    This test seems foolish to me. A 1GB database? All of that fits in ram.

    A database server is all about being the most reliable form of STORAGE, not some worthless repeat queries that you should cache anyway.

    Transactions, logging... I mean how realistic is it to have a 1GB of database on a system with 4GB of RAM and expensive DB2 software.

    A real e-commerce site likeMWave, NewEgg, Crucial could have 20GB per year! Names, addresses, order detail, customer support history, etc.

    Once you get over a certain size, a database is all about disk (putting logging on one disk indepdent of the daata, etc.). The indexes do the main searching work.

    This whole test seems geared to be CPU focused, but only a hardware hacker would apply software in such a crazy way.

  • mrdudesir - Thursday, December 2, 2004 - link

    man i would love to have one of those systems. Great job on the review you guys, its good to know that there are places where you can still get great independent analysis.
  • Zac42 - Thursday, December 2, 2004 - link

    mmmmmmm Quad Opterons......
  • Snoop - Thursday, December 2, 2004 - link

    Great read
  • ksherman - Thursday, December 2, 2004 - link

    is that pic from the 'lab'? (the one on pg 1)

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