Re: [cti-taxii] Re: [EXT] [cti-taxii] topics from today's call - part 3

["Jason Keirstead" <Jason.Keirstead@ca.ibm.com>]

I'll copy/paste my reply on Slack...

Were you using a result set/cursor as
you did this paging? I can't see how you would have been....

https://jdbc.postgresql.org/documentation/head/query.html#query-with-cursor

-
Jason Keirstead
STSM, Product Architect, Security Intelligence, IBM Security Systems
www.ibm.com/security

"Things may come to those who wait, but only the things left by those
who hustle." - Unknown 




From:      
 Bret Jordan <Bret_Jordan@symantec.com>
To:      
 "cti-taxii@lists.oasis-open.org"
<cti-taxii@lists.oasis-open.org>
Date:      
 12/13/2017 03:39 AM
Subject:    
   [cti-taxii]
Re: [EXT] [cti-taxii] topics from today's call - part 3
Sent by:    
   <cti-taxii@lists.oasis-open.org>

---

Here is the data that shows the performance
impacts of doing queries with LIMIT/OFFSET versus the same query without
the OFFSET. This performance problem all goes away, if you just do simple
WHERE queries and you do them based on some incremental field.  And
since we already have that in TAXII, aka, the Date Added to micro second
precision, this becomes super easy and super fast.

 Basic Query with  1000 records
Individual Times (ms): 0 0 0 0 0 0 0 0 0 0
Average Time (ms):  0
Offset Query with  1000 records with offset 500
Individual Times (ms): 4 3 3 3 3 3 3 4 4 7
Average Time (ms):  4

Basic Query with  10000 records
Individual Times (ms): 0 0 0 0 0 0 0 0 0 0
Average Time (ms):  0
Offset Query with  10000 records with offset 5000
Individual Times (ms): 44 32 34 29 34 27 28 32 38 27
Average Time (ms):  33

Basic Query with  50000 records
Individual Times (ms): 0 0 0 0 0 0 0 0 0 0
Average Time (ms):  0
Offset Query with  50000 records with offset 25000
Individual Times (ms): 238 169 161 164 170 164 166 162 169 157
Average Time (ms):  172

Basic Query with  100000 records
Individual Times (ms): 0 0 0 0 0 0 0 0 0 0
Average Time (ms):  0
Offset Query with  100000 records with offset 50000
Individual Times (ms): 702 379 384 351 373 354 349 367 361 366
Average Time (ms):  399

Basic Query with  250000 records
Individual Times (ms): 1 0 0 0 0 0 0 0 0 0
Average Time (ms):  0
Offset Query with  250000 records with offset 300000
Individual Times (ms): 7457 6209 6216 6101 6116 6161 6134 6084 6095 6130
Average Time (ms):  6270

Bret

---

From: cti-taxii@lists.oasis-open.org
<cti-taxii@lists.oasis-open.org> on behalf of Bret Jordan <Bret_Jordan@symantec.com>
Sent: Tuesday, December 12, 2017 2:54:54 PM
To: cti-taxii@lists.oasis-open.org
Subject: [EXT] [cti-taxii] topics from today's call - part 3
 
I would like us to consider dropping the
pagination by Items concept in TAXII 2.1 and replace it with a simple query
of the date added to the collection.

https://github.com/oasis-tcs/cti-taxii2/issues/23

Bret