Note: forwarded message attached.
Could any body plz look into this matter and provide
me with some help :-) I have posted this once but
couldnt get any reply..
Hoping for a response from sqlite techies
regards
vineeth
__
Do You Yahoo!?
Jonathan Zdziarski wrote:
>
> D. Richard Hipp wrote:
>
>> Are you sure your users are not, in fact, filling up their disk
>> drives?
>
>
> nope, plenty of free space on the drives. The 50MB limit seems to be
> very exact as well...exactly 51,200,000 bytes. I'm stumped too.
Assuming your
Hi,
I found this problem a long time ago, but cannot figure out why:
Everytime I put sqlite(no matter sqlite3.exe/sqlite3.dll/ other wrappers
like sqlitedb.dll/ litex dll ) in a directory that contains non-ASCII
characters, it failed to construct a connection. But it works well in those
Robert,
> [snip]
>
> > i said i print these rows to /dev/null too in my perl code. plus the
> > perl code does some other things such as joining these rows with other
> > hashes and summing the numbers.
>
> That's fine. I was merely trying to account for the 50% speed difference
> between the
Robert,
> > time sqlite3 db 'select n1 from data where a <= 18234721' > /dev/null
> > 26.15u 0.59s 0:27.00 99.0%
> >
> > time sqlite3 db 'select n1 from data where a <= 18234721' > /dev/null
> > 26.04u 0.61s 0:26.91 99.0%
> >
> > time sqlite3 db 'select e from data where a <= 18234721' >
Let's recap ...
> time sqlite3 db 'select n1 from data where a <= 18234721' > /dev/null
> 26.15u 0.59s 0:27.00 99.0%
>
> time sqlite3 db 'select n1 from data where a <= 18234721' > /dev/null
> 26.04u 0.61s 0:26.91 99.0%
>
> time sqlite3 db 'select e from data where a <= 18234721' > /dev/null
>
Robert,
> > i guess, i can believe this. however its pretty disappointing to get
> > 50% improvement on 30 times less dataset :(
> >
> > but how do you explain this?
> >
> > sqlite> .schema data
> > CREATE TABLE data
> > (
> >a INTEGER,
> >b INTEGER,
> >c CHAR,
> >
> -Original Message-
> From: Maksim Yevmenkin [mailto:[EMAIL PROTECTED]
> Sent: Monday, April 11, 2005 9:59 AM
> To: Christian Smith
> Cc: sqlite-users@sqlite.org
> Subject: Re: [sqlite] sqlite performance problem
>
> i guess, i can believe this. however its pretty disappointing to get
>
What about the os shells limit? Look at commands limit/ulimit/unlimit
G. Roderick Singleton wrote:
On Mon, 2005-04-11 at 12:05 -0400, Jonathan Zdziarski wrote:
D. Richard Hipp wrote:
Are you sure your users are not, in fact, filling up their disk
drives?
nope, plenty of free space
Christian,
thanks for the reply.
> >i'm having strange performance problem with sqlite-3.2.0. consider the
> >following table
> >
> > [snip]
> >
> >now the problem:
> >
> >1) if i do a select with an idex it takes 27 sec. to get 92 rows
> >
> >> time sqlite3 db 'select n2 from data where a
Mail system likely has a quota.
Check this link:
http://www.webservertalk.com/archive280-2004-6-280358.html
-Original Message-
From: Jonathan Zdziarski [mailto:[EMAIL PROTECTED]
Sent: Monday, April 11, 2005 12:27 PM
To: sqlite-users@sqlite.org
Subject: Re: [sqlite] 50MB Size Limit?
G. Roderick Singleton wrote:
quotas?
That crossed my mind, but all of these databases are being stored in
system space (/usr/local/var/dspam) and owned by the mail system.
On Mon, 2005-04-11 at 12:05 -0400, Jonathan Zdziarski wrote:
> D. Richard Hipp wrote:
> > Are you sure your users are not, in fact, filling up their disk
> > drives?
>
> nope, plenty of free space on the drives. The 50MB limit seems to be
> very exact as well...exactly 51,200,000 bytes. I'm
On Mon, 2005-04-11 at 11:28 -0400, Jonathan Zdziarski wrote:
> Greetings!
>
> I couldn't find any information on this via google or sqlite.org, so I'm
> hoping someone can answer this for me.
>
> We support SQLite v2.x and v3.x as storage backends in DSPAM. I've had a
> lot of users complain
Greetings!
I couldn't find any information on this via google or sqlite.org, so I'm
hoping someone can answer this for me.
We support SQLite v2.x and v3.x as storage backends in DSPAM. I've had a
lot of users complain that they get 'Database Full' errors once their
file hits 50MB in size, and
On Mon, Apr 11, 2005 at 03:59:56PM +0200, Thomas Steffen wrote:
> I have a problem where I need both a high throughput (10%
> write/delete, 90% read) and durability. My transactions are really
> simple, usually just a single write, delete or read, but it is
> essential that I know when a
On Apr 11, 2005 4:06 PM, Christian Smith <[EMAIL PROTECTED]> wrote:
> The test given is clearly CPU bound. All the big numbers are from people
> with big CPUs, with equally big RAM performance as well, probably.
I have done a few database test recently, and I often found them to be
CPU bound, at
On Apr 11, 2005 4:17 PM, Christian Smith <[EMAIL PROTECTED]> wrote:
> On Mon, 11 Apr 2005, Thomas Steffen wrote:
> >Is it possible to delay the fsync(), so that it
> >only occurs after 10 or 100 transactions?
>
> No.
Thought so, because the transaction log seems to happen at a low
level, close
On Mon, 11 Apr 2005, Witold Czarnecki wrote:
>rsync could be better.
Neither would do a good job if the database contents change while you're
copying it. There be pain and corruption.
The safest way to take a snapshot is to use the sqlite shell .dump
command, and feed the output of that to
On Mon, 11 Apr 2005, Thomas Steffen wrote:
>I have a problem where I need both a high throughput (10%
>write/delete, 90% read) and durability. My transactions are really
>simple, usually just a single write, delete or read, but it is
>essential that I know when a transaction is commited to disk,
rsync could be better.
Best Regards,
Witold
And is there a way to automatically replicate the database to a second
system?
Copying the database file should give you an exact replica.
On Apr 11, 2005 6:59 AM, Thomas Steffen <[EMAIL PROTECTED]> wrote:
> I have a problem where I need both a high throughput (10%
> write/delete, 90% read) and durability. My transactions are really
> simple, usually just a single write, delete or read, but it is
> essential that I know when a
On Sat, 9 Apr 2005, Al Danial wrote:
>On Apr 9, 2005 12:43 AM, Andy Lutomirski <[EMAIL PROTECTED]> wrote:
>> Al Danial wrote:
>> > The attached C program measures insert performance for populating
>> > a table with an integer and three random floating point values with
>> > user defined
I have a problem where I need both a high throughput (10%
write/delete, 90% read) and durability. My transactions are really
simple, usually just a single write, delete or read, but it is
essential that I know when a transaction is commited to disk, so that
it would be durable after a crash.
I
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