Image Server Challenge

This page will be updated when further results are made available. The following results are in response to my raster challenge. Although tempting to compare results across servers, please remember they are not comparative. The idea of the challenge is to allow each image serving application to use their preferred storage mechanism to highlight peak performance of their application using the same base data. Whether the end number is the same or twice as “fast” is really irrelevant. For a direct comparison, look here

Lizardtech

CONTACT

Robert Parker, Lizardtech

PRODUCT

Lizardtech Express Server 6.1

  • index caching enabled
  • WMS extraction cache disabled (for fairness)
  • Apache 2.0.63 32-bit

HARDWARE

  • Dell PowerEdge 2850
  • Windows Server 2003 r2, 64-bit
  • Intel Xeon 2.8 Ghz
  • 8 GB RAM
  • RAID SCSI Disk

CONFIGURATION STEPS

  1. Add a catalog (layer) to Express Server which points to the folder where the images are stored. This can be done either by editing the XML configuration document or simply by using the Express Server Management Console.
  2. Configure the layer for WMS. This can be done either via the command line tool isindex, or via the ES Management Console.
  3. Create an overview (command line or ESMC).

DATA

  1. 8 MrSID (MG3) files in a folder on the server’s local file system, 1.76 GB
  2. 1 Overview MrSID (MG3), 4.22 MB

RESULTS

Label Count Avg Min Max Errors Throughput
1 100 72 20 180 0 13.5
10 200 142 20 411 0 54.1
20 400 266 21 1014 0 60.5
40 800 593 19 2316 0 59.1
80 1600 1172 33 3487 0 61.1
150 3000 2333 40 4887 0 60.5

ERDAS

CONTACT

Chris Tweedie, ERDAS

PRODUCT

APOLLO Image Web Server 2010

  • to be completed …

DATA

  1. A single 86400 x 43200 px ECW, 0.263 GB

RESULTS

(these are taken from the previous benchmark page. I need to update these)

Label Count Avg Min Max Errors Throughput
1 100 43 11 538 0 21.7
10 200 124 11 3025 0 34.7
20 400 161 10 3087 0 65.3
40 800 326 11 3337 0 77.5
80 1600 633 12 5505 0 100.7
150 3000 1045 14 9837 0 116.8