Dual CPU Database Server Comparisonby Johan De Gelas on December 2, 2004 12:11 AM EST
- Posted in
- IT Computing
IntroductionDespite its incredible importance, it is difficult to find independent hardware advice on database servers. Only a few major hardware and software vendors publish the majority of the TPC and other benchmark numbers. Although a discussion on TPC benchmarks is beyond the scope of this article, it is clear that there is no substitute for independent benchmarking.
Benchmarks that vendors provide have a tendency to be to rosy or perhaps even flawed. Vendors may use hardware setups or software configurations that are unlikely to exist in the real world, yet attain the highest score on a particular benchmark. Benchmarking done by Jason and Ross are a notable exception on the internet, of course.
Because many of our readers are interested or are engaged in this field, we started a new databaseserver benchmarking project just a few months ago.
The primary objective of this project is to determine the hardware that makes sense for a database server of small and medium-sized organizations. We tested DB2, and My SQL on SUSE SLES 8 on many different systems based on four different Xeons CPUs and two Opteron configurations.
"Servers are all about large caches and fast I/O." This is a generalization that is heard a lot in the IT community and the cliché has been proven, more or less, to be accurate in the high-end server market. But does this common wisdom also apply to the smaller dual processor systems that act as database servers? Should you pay more for a Xeon that has a healthy amount of L3-cache, or will a less expensive Intel without L3-cache do just fine? Does 64-bit really matter? How important is memory latency/bandwidth? Is a hyperthreaded CPU better equipped when the database is accessed by many users simultaneously?
While we still continue to improve the quality of our benchmarks, we decided to report our first impressions.
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markwrob - Friday, February 4, 2005 - linkGreat article. One thing I'm looking for on
this and similar comparisons is how the rigs
or their components do on power consumption.
Are there any places to find that out easily?
markwrob - Friday, February 4, 2005 - link
vaxinator - Monday, December 13, 2004 - linkVery interesting review. I think you are wise to narrow your scope to basically in-memory queries, since this pretty much ensures you are testing just the CPU and memory. Disk I/O is another topic.
I would be interested to know a few more details about the database (the data model) and the actual queries used.
But the key element you need to watch for is ensuring your client box is not overloaded. I have seen lots of "performance reviews" where the client box was smaller than the device under test...wrong! It should be under-utilized and the cpu consumption/memory use etc should be reported as well. If necessary use lots of client boxes, but watch the network load.
rogerjlarsson - Monday, December 6, 2004 - linkMySQL v. IBM DB2 Single v. Dual
"MySQL doesn't seem to scale as well as DB2."
Yea, right... It all depends on what level you start from!
MySQL _Single_ Xeon Concurrency 50: 157
DB2 _Dual_ Xeon Concurrency 50: 102
MySQL scales a little to _Dual_ Conc. 50: 222
DB2 is not even near!!! MySQL might be network
limited rather than Memory or CPU...
davesbeer - Sunday, December 5, 2004 - linkDecoder
Oracle's ETL tool is $5k also comes with
I've worked with some of the biggest financial institutions in the world including ABN Amro... etc...
Oracle's DB also is less costly then MS.. Not thier EE version but then again MS has nothing to compete with that one..
Also you mentioned MS tools are the best.. not likely.. they are the easiest to use but far from the best.. The worlds biggest datawarehouses, datamarts etc.. are not on MS and they don't use MS's tools... except for maybe MS's themselves...
jensend - Sunday, December 5, 2004 - linkComparing these systems in 32-bit mode with a 2.4-based distro makes very little sense. Among a lot of other reasons, the 2.4 scheduler is AFAIK rather poorly suited for use with combined SMT & SMP.
marcuri - Saturday, December 4, 2004 - linkas #5 methods are far from being anywhere remotely 'mature' as the article states. Actually, after talking to people who run databases, its close to useless. The benchmarks used test cpu speed, not memory or memory management. Opterons are a better solution because they are 64 bit and thus handel the management of 4+gigs of memory much better (it starts in excess of 1gig that 64 helps out i believe). By using a data set of 1 gig the benchmarks are completely missing whats important, its niave at best.
Decoder - Saturday, December 4, 2004 - linkdavesbeer:
I've worked with Oracle 8i, 9, IBM UDB v7, SQL Server 6.5,7, 2K and 2005. I also do J2EE, ETL (Informatica, Datastage, DTS), .NET etc. $ for $, MS SQL Server 2005 is a much better value.
Have you ever built a data mart using MS SQL Server DTS? It's an ETL tool that comes with MS SQL server for free. Try building a data mart on Oracle and you will find yourself spending 100K US for an ETL tool. Also from a developers perspective, SQL Server tools are the best (Read up on SQL Profiler, Query Analyzer etc).
.NET not scalable? Scalable compared to what? J2EE EJB's?? Please. Sure there's a limit to scalability on 32-bit boxes, but with x86-64 and 64bit OS's, that limit will go away.
davesbeer: "SQL Server is for people who can't program real databases"
Program databases? Please elaborate. You code to a database, design a database, write procs for a database but what does program databases mean?
Also, tell that to the Finanical Services companies in New York.
davesbeer: "SQL Server will be delayed again... (you can remember I said that) and the technology is already outdated."
SQL Server 2005 will be extremely popular. Also SQL Server 2005 DTS (a complete rewrite) will penetrate the ETL market.
davesbeer - Saturday, December 4, 2004 - linkDecoder.
I work with companies that have over 6000 processors actively running multiple databases in thier environments. MS just does'nt compete.. .Net is interesting but again you are stuck with M$ and scalabilty is just not there for real apps. Most financial industries run Sybase... its thier last bastion of full fledged support, I worked with 15 of the largest American Financial institutes, I know what I am taking about. I currently work with some of the largest IT departments in the world. Thousands of developers in a single company alone.. I know IT.
Oracle, DB2 etc's 64 bit knowledge is far superior to M$ and will remain that way for a long time.. they'll been writing 64bit code for years. SQL Server will be delayed again... (you can remember I said that) and the technology is already outdated. SQL Server is for people who can't program real databases (can feel the flames now) sorry Anandtech but your databases are lightweight... once they grow up you will switch to Oracle or DB2 etc..
at80eighty - Saturday, December 4, 2004 - linkFirst off: Welcome Johan : )
next...im a frickin n00b, so pardon my ignorance : )
my questions may not be entirely on topic, but i hope someone...ANYONE can help...
im lookin to *build* an entry level server, so i've got the following doubts (based on the following factors) :
Company: startup...less than a year old
Expected # of initial users: 8 (2 people will be responsible for writing data, all employees will read db) requirements should go up to 15-20 people (2-4 write: all read) by year end (should business expand as planned)
Server: Mail + DB + File server in one
Cost: would be nice to keep things economical , but im willing to stretch for a middle ground : )
1) What CPU is best bang for buck?
2) OS will be Windows SBS Premium...was going for this since i gathered MS SQL is the best way to go (more so coz Anandtech uses SQL too :p )...after reading some of the comments im a little confused viz. DB2 v/s Oracle v/s MS SQL...plus Exchange looks kinda sweet too : )
3) Should i wait for SQL 2005? What benefits if any (with reference to costs) ?
4) Which is the best front-end in your opinion? i was looking to use Infopath as i found the GUI VERY easy to use and frankly the look is quite easy on the eyes too : p. Also, its important to note that I am *supposedly* the most computer literate in my company...so im looking to create a DB with an easy interface for my employees : p
5) Is Crystal Reports easy to integrate into MS SQL (or any of the above for that matter)? OR im lookin for a back-end that can export data to Excel, so that i can analyse & crunch numbers
6) Will i *need* an in-house IT guy to manage the DB? ...or even the server as a whole? (looking to keep costs to a minimum)
i've got TONS of further queries (and i dont want to attention-whore on the thread :), so, should anyone have any spare time (and any inclination in the first place : ) to help a fellow AT'er, my mail add is: ucanmailme AT gmail DOT com
Thanks in advance