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Re: MySQL on T2000


Based on some of the discussion so far in this thread
(which thank you all by the way for your input!) has led me down some
holes I was afraid to go down (building from source).  I'm not averse
to it for technical reasons, just.. its a time consumer. :)  In any case
I did run some tests on the box, building MySQL from source with a
variety of -mtune attempts (niagara, niagara2/3, etc), and
interestingly enough all of those attempts yielded a system that
actually was _slower_ than the 'stock' binaries distributed with
Debian SPARC (Wheezy).

I am currently attempting a MariaDB build on the machine, but have
been running into some compile-time errors (I'm not very experienced
in porting to different architectures), as I was unable to find any
binaries of MariaDB (hoping its claims of faster/better would apply

I'll drop a reply if I ever get Maria built and see a difference.
Thanks again for all the input, much appreciated!



On Tue, Jan 28, 2014 at 4:19 AM, Rainer Herbst
<rainer.herbst@uni-potsdam.de> wrote:
> Single thread performance of the T2000 is definatly lower than of x86
> hardware, but a factor of 30 is to high. I would have expected factor 3-4,
> maybe 10.
> We use a T2000 for LDAP and MySQL server in Solaris 10 LDOMs, and the system
> perform reasonably well.
> Mit freundlichen Grüßen,
> Rainer Herbst
> Zentrale Einrichtung für Informations-
> verarbeitung und Kommunikation (ZEIK)
> Universität Potsdam
> Am Neuen Palais 10, Haus 8, Zimmer 0.70a
> 14469 Potsdam
> Tel. 0331 - 977 1039
> Quoting Patrick Baggett <baggett.patrick@gmail.com>:
>> Just from reading others' questions and answers over the web, I wouldn't
>> be
>> surprised if that was the case, especially if you are doing anything that
>> needs an FPU in there. Also IIRC, they are in-order CPUs, which means
>> having proper compiler flags will make a difference. Stock MySQL from
>> Debian probably doesn't have any special flags applied, whereas you'd
>> probably want "-mtune=niagara".
>> I'm interested in finding out the answer as well -- I've considering
>> picking up a used T2-based, which has similar characteristics, since they
>> are down to a few hundred dollars.
>> Patrick
>> On Mon, Jan 27, 2014 at 1:35 PM, Chris Lawrence <chris@nrsys.org> wrote:
>>> Greetings:
>>> I have been gifted a Sun T2000 from my employer as a hand-me-down
>>> piece of hardware.  I have had plenty of experience using it as a
>>> Solaris 10 box, and we generally ran Oracle and our in-house products
>>> on the hardware with good results.
>>> After getting the hardware, without a Sun contract I went with Debian,
>>> which was fine as my expertise/background is more heavily Linux than
>>> Solaris anyways.
>>> After a lot of tinkering I got the system as I liked it, prepared to
>>> host several LXC containers, separated as database and web servers for
>>> a project for my friend's gaming website.  All went well, until I
>>> started working with MySQL.  I started noticing significant
>>> differences in performance, and, I went down the rabbit hole to find
>>> plenty of articles talking about how MySQL doesn't run well on The
>>> T2000's due to single threadedness sort of reasons.
>>> I've done a good amount of fine tuning of the database, but I'm
>>> finding any query of complexity taking sometimes as much as 30x longer
>>> to execute than on same-era x86 hardware running Debian.
>>> I am really just trying to figure out if I'm wasting my time by trying
>>> to 'fix' this, or if its a reality of the hardware platform.  Even
>>> simple 'select BENCHMARK' queries are returning back after 25-30
>>> seconds, whereas on the x86 box it comes back in 1-2 seconds.
>>> Is MySQL on this hardware platform a lost cause, or am I missing
>>> something obvious?
>>> Thanks in advance!
>>> Regards,
>>> Chris
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