Notice: this Wiki will be going read only early in 2024 and edits will no longer be possible. Please see: https://gitlab.eclipse.org/eclipsefdn/helpdesk/-/wikis/Wiki-shutdown-plan for the plan.
Difference between revisions of "EmfIndex Comparison"
| Line 56: | Line 56: | ||
|} | |} | ||
| − | [[Image: | + | [[Image:EmfIndex AllInMemory.png]]<br> |
== Query response time == | == Query response time == | ||
| − | === Query All EObject and all EReferences === | + | === Query All EObject and all EReferences === |
{| width="200" cellspacing="1" cellpadding="1" border="1" | {| width="200" cellspacing="1" cellpadding="1" border="1" | ||
| Line 80: | Line 80: | ||
|} | |} | ||
| − | [[Image: | + | [[Image:EmfIndex_ResponseTimeAllEObjects.png]]<br> |
| + | |||
| + | === Query all references targeting a certain resource === | ||
| + | |||
| + | {| width="200" cellspacing="1" cellpadding="1" border="1" | ||
| + | |- | ||
| + | | <br> | ||
| + | | 1 | ||
| + | | 2 | ||
| + | | 4 | ||
| + | | 8 | ||
| + | | 16 | ||
| + | | 32 | ||
| + | | 64 | ||
| + | | 128 | ||
| + | |- | ||
| + | | SAP | ||
| + | | 0,6 ms | ||
| + | | 0,6 ms | ||
| + | | 0,6 ms | ||
| + | | 0,6 ms | ||
| + | | 0,6 ms | ||
| + | | 0,6 ms | ||
| + | | 0,6 ms | ||
| + | | 0,6 ms | ||
| + | |- | ||
| + | | Itemis | ||
| + | | 5 ms | ||
| + | | 537 ms | ||
| + | | 3178 ms | ||
| + | | 15190 ms | ||
| + | | 65177 ms | ||
| + | | 268899 ms | ||
| + | | 1087066 ms | ||
| + | |} | ||
| + | |||
| + | [[Image:EmfIndex_ResponseTimeBackwardNavi.png]]<br> | ||
| + | |||
| + | === Query all instances of "EClass" === | ||
| + | |||
| + | {| width="200" cellspacing="1" cellpadding="1" border="1" | ||
| + | |- | ||
| + | | <br> | ||
| + | | 128 | ||
| + | | 256 | ||
| + | | 512 | ||
| + | | 1024 | ||
| + | | 2048 | ||
| + | |- | ||
| + | | SAP | ||
| + | | 0,4 ms | ||
| + | | 0,8 ms | ||
| + | | 1,2 ms | ||
| + | | 4 ms | ||
| + | | 8,2 ms | ||
| + | |- | ||
| + | | Itemis | ||
| + | | 72 ms | ||
| + | | 142 ms | ||
| + | | 287 ms | ||
| + | | 500 ms | ||
| + | | 1103 ms | ||
| + | |} | ||
| + | |||
| + | [[Image:EmfIndex_ResponseTimeTypeQuery.png]]<br> | ||
<br> | <br> | ||
Revision as of 03:59, 2 September 2009
This page is intended to compare the two index implementations form different viewpoints such as
- API
- Performance
- Memory Consumption
- How to build a convinient Query API on top of the low level API
Contents
Performance
Indexing
Indexing time
This test measured the time which is needed to index x-times the content of Ecore.ecore. (Containing 393 instances of EObject and 520 references)
| |
1000 | 2000 | 3000 |
| SAP | 15,4 s | 29,9 s | 45,3 s |
| Itemis | 14,6 s | 28,4 s | 43,5 s |
Memory consumption
This test measured the in memory size of the index. In the SAP case, paging was disabled
| |
1000 | 2000 | 3000 |
| SAP | 136 million bytes | 278 million bytes | 408 million bytes |
| Itemis | 169 million bytes | 340 million bytes | 508 million bytes |
Query response time
Query All EObject and all EReferences
| |
1000 | 2000 | 3000 |
| SAP | 0,3 s | 0,45 s | 0,65 s |
| Itemis | 1,4 s | 2,2 s | 3,3 s |
Query all references targeting a certain resource
| |
1 | 2 | 4 | 8 | 16 | 32 | 64 | 128 |
| SAP | 0,6 ms | 0,6 ms | 0,6 ms | 0,6 ms | 0,6 ms | 0,6 ms | 0,6 ms | 0,6 ms |
| Itemis | 5 ms | 537 ms | 3178 ms | 15190 ms | 65177 ms | 268899 ms | 1087066 ms |
Query all instances of "EClass"
| |
128 | 256 | 512 | 1024 | 2048 |
| SAP | 0,4 ms | 0,8 ms | 1,2 ms | 4 ms | 8,2 ms |
| Itemis | 72 ms | 142 ms | 287 ms | 500 ms | 1103 ms |
