Tyler Muth’s Blog

Technology with a focus on Oracle, Application Express and Linux

I Need More Hardware!

Posted by Tyler Muth on February 8, 2012

Actually, this is one of the few times I can remember in my career when I can honestly say I have enough horsepower at my disposal.

Want to guess what I’m running right now?

> select count(*) from v$asm_disk where name like 'DATA_XXX%';


> select sum(total_mb)/1024/1024 tb from v$asm_disk;


> select count(*) from gv$instance;

[oracle@somehost: ~]$ cat /proc/meminfo | grep MemTotal
MemTotal:       1058429820 kB

[oracle@somehost: ~]$ cat /proc/cpuinfo | grep -m 1 Xeon
model name      : Intel(R) Xeon(R) CPU           X7560  @ 2.27GHz

[oracle@somehost: ~]$ cat /proc/cpuinfo | grep -c Xeon

[root@somehost ~]# find /sys/class/infiniband/ -name 'rate' -exec cat {} \;
40 Gb/sec (4X QDR)
40 Gb/sec (4X QDR)
40 Gb/sec (4X QDR)
40 Gb/sec (4X QDR)
40 Gb/sec (4X QDR)
40 Gb/sec (4X QDR)
40 Gb/sec (4X QDR)
40 Gb/sec (4X QDR)

This POV will probably generate a number of follow-up posts. One concept: there are always bottlenecks. When you remove the hardware bottlenecks, bottlenecks in your code quickly surface.

8 Responses to “I Need More Hardware!”

  1. James "J.R." Myers said

    But can it play M.U.L.E.?

  2. 3 X2-8 racks clustered together? sounds like fun!

    • Tyler Muth said

      I figured it would be someone from enkitec to get it first. Running on a diskgroup that only spans 14 cells and mostly using 2 nodes as we’re trying to only test a single X2-8. It’s nice having the other 4 nodes of CPU power when you need it though.

  3. why Nehalem-EX instead of E7?

    Actually, the bottleneck is going to be the glueless snoopy 2-hop NUMA in those x4800s. Do you have the Control Group ready code for the instances?

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