] <mailto:[EMAIL PROTECTED]>>
Vastaanottaja: "Heikki Tuuri" <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>>; <mailto:mysql@lists.mysql.com>>
Lähetetty: Tuesday, October 18, 2005 4:39 AM
Aihe: RE: Non-linear degradation in bulk loads?
Side question: If I use a 64-bit
the sole application on the machine?
-JF
> -Original Message-
> From: Heikki Tuuri [mailto:[EMAIL PROTECTED]
> Sent: Monday, October 17, 2005 10:55 AM
> To: mysql@lists.mysql.com
> Subject: Re: Non-linear degradation in bulk loads?
>
> Jon,
>
> I am not 100 % s
-Original Message-
> From: Heikki Tuuri [mailto:[EMAIL PROTECTED]
> Sent: Monday, October 17, 2005 10:52 AM
> To: mysql@lists.mysql.com
> Subject: Re: Non-linear degradation in bulk loads?
>
> Jon,
>
> I do not know. Why not install a 64-bit Linux in your compute
programs that occupy a few GB of
memory.
Regards,
Heikki
Oracle/Innobase
- Alkuperäinen viesti -
Lähettäjä: "Jon Frisby" <[EMAIL PROTECTED]>
Vastaanottaja: "Heikki Tuuri" <[EMAIL PROTECTED]>;
Lähetetty: Monday, October 17, 2005 8:49 PM
Aihe: RE: Non-
com
> Subject: Re: Non-linear degradation in bulk loads?
>
> Jon,
>
> your hardware/OS combination is quite new and unusual. It
> might indeed be an OS problem. We observed from a 64-bit RHEL
> 4 that when the file cache of the OS grew bigger than 4 GB,
> then the file I/
r 17, 2005 8:46 PM
Aihe: RE: Non-linear degradation in bulk loads?
Actually, I believe we're running 32-bit, with bigmem... Does similar
behavior occur in such a scenario?
-JF
-Original Message-
From: Heikki Tuuri [mailto:[EMAIL PROTECTED]
Sent: Sunday, October 16, 2005 2:23 AM
To: m
"
>
> Regards,
>
> Heikki
>
>
> - Original Message -
> From: ""Jon Frisby"" <[EMAIL PROTECTED]>
> Newsgroups: mailing.database.myodbc
> Sent: Friday, October 14, 2005 10:39 PM
> Subject: RE: Non-linear degradation in bulk
About 6GB... Is there any way to forcibly limit this?
-JF
> -Original Message-
> From: Heikki Tuuri [mailto:[EMAIL PROTECTED]
> Sent: Sunday, October 16, 2005 2:23 AM
> To: mysql@lists.mysql.com
> Subject: Re: Non-linear degradation in bulk loads?
>
> Jon,
setting)).
-JF
-Original Message-
From: Heikki Tuuri [mailto:[EMAIL PROTECTED]
Sent: Wednesday, October 12, 2005 8:15 AM
To: mysql@lists.mysql.com
Subject: Re: Non-linear degradation in bulk loads?
=20
Jon,
=20
hmm... maybe one of the indexes inevitably is in a random order.
=20
Please p
L PROTECTED]
> Sent: Wednesday, October 12, 2005 8:15 AM
> To: mysql@lists.mysql.com
> Subject: Re: Non-linear degradation in bulk loads?
>
> Jon,
>
> hmm... maybe one of the indexes inevitably is in a random order.
>
> Please post a typical
>
> SHOW INNODB
AIL PROTECTED]>
Vastaanottaja: "Heikki Tuuri" <[EMAIL PROTECTED]>;
Lähetetty: Wednesday, October 12, 2005 3:08 AM
Aihe: RE: Non-linear degradation in bulk loads?
Two solutions: 1) sort the rows to be inserted on the key
'email' before inserting.
2) Or:
http://dev.mysql.co
> Two solutions: 1) sort the rows to be inserted on the key
> 'email' before inserting.
>
> 2) Or:
>
> http://dev.mysql.com/doc/mysql/en/innodb-tuning.html
> "
> If you have UNIQUE constraints on secondary keys, starting from MySQL
> 3.23.52 and 4.0.3, you can speed up table imports by
> tempor
sday, October 11, 2005 4:12 AM
Subject: Non-linear degradation in bulk loads?
Everyone,
We're trying to do some bulk data loads on several different tables (on
several different machines, using several different techniques) and
seeing dramatically worse-than-linear performance.
We've tr
Jon,
my guess is that the inserts to the UNIQUE secondary index cause the
workload to be seriously disk-bound.
Two solutions: 1) sort the rows to be inserted on the key 'email' before
inserting.
2) Or:
http://dev.mysql.com/doc/mysql/en/innodb-tuning.html
"
If you have UNIQUE constraints on
Jon Frisby wrote:
Everyone,
We're trying to do some bulk data loads on several different tables (on
several different machines, using several different techniques) and
seeing dramatically worse-than-linear performance.
We've tried the bulk-INSERT syntax, and the LOAD DATA INFILE syntax.
We've d
ject: Non-linear degradation in bulk loads?
Everyone,
We're trying to do some bulk data loads on several different tables (on
several different machines, using several different techniques) and
seeing dramatically worse-than-linear performance.
We've tried the bulk-INSERT syntax, and t
ginal Message-
> From: Manoj [mailto:[EMAIL PROTECTED]
> Sent: Monday, October 10, 2005 8:51 PM
> To: Jon Frisby
> Cc: mysql@lists.mysql.com
> Subject: Re: Non-linear degradation in bulk loads?
>
> Not sure but given that you suffer from non-linear
> degradation in performan
Not sure but given that you suffer from non-linear degradation in
performance;my guess is you might be extending your ibdata file every
too frequently during the batch load process. Check the
ibdata_data_file_path variable in my.cnf for more details.
Cheers
Manoj
On 10/11/05, Jon Frisby <[EMAIL P
Everyone,
We're trying to do some bulk data loads on several different tables (on
several different machines, using several different techniques) and
seeing dramatically worse-than-linear performance.
We've tried the bulk-INSERT syntax, and the LOAD DATA INFILE syntax.
We've done ALTER TABLE ...
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