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Difference between revisions of "EmfIndex Comparison"
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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) | 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) | ||
| − | {| | + | {| border="1" |
|- | |- | ||
| <br> | | <br> | ||
| Line 38: | Line 38: | ||
This test measured the in memory size of the index. In the SAP case, paging was disabled | This test measured the in memory size of the index. In the SAP case, paging was disabled | ||
| − | {| | + | {| border="1" |
|- | |- | ||
| <br> | | <br> | ||
| Line 62: | Line 62: | ||
=== Query All EObject and all EReferences === | === Query All EObject and all EReferences === | ||
| − | {| | + | {| border="1" |
|- | |- | ||
| <br> | | <br> | ||
| Line 80: | Line 80: | ||
|} | |} | ||
| − | [[Image: | + | [[Image:EmfIndex ResponseTimeAllEObjects.png]]<br> |
=== Query all references targeting a certain resource === | === Query all references targeting a certain resource === | ||
| − | {| | + | {| border="1" |
|- | |- | ||
| <br> | | <br> | ||
| 1 | | 1 | ||
| − | | 2 | + | | 2 |
| − | | 4 | + | | 4 |
| − | | 8 | + | | 8 |
| − | | 16 | + | | 16 |
| − | | 32 | + | | 32 |
| − | | 64 | + | | 64 |
| 128 | | 128 | ||
|- | |- | ||
| Line 104: | Line 104: | ||
| 0,6 ms | | 0,6 ms | ||
| 0,6 ms | | 0,6 ms | ||
| − | | 0,6 ms | + | | 0,6 ms |
|- | |- | ||
| Itemis | | Itemis | ||
| 5 ms | | 5 ms | ||
| 537 ms | | 537 ms | ||
| − | | 3178 ms | + | | 3178 ms |
| − | | 15190 ms | + | | 15190 ms |
| − | | 65177 ms | + | | 65177 ms |
| − | | 268899 ms | + | | 268899 ms |
| 1087066 ms | | 1087066 ms | ||
|} | |} | ||
| − | [[Image: | + | [[Image:EmfIndex ResponseTimeBackwardNavi.png]]<br> |
=== Query all instances of "EClass" === | === Query all instances of "EClass" === | ||
| − | {| | + | {| border="1" |
|- | |- | ||
| <br> | | <br> | ||
| 128 | | 128 | ||
| − | | 256 | + | | 256 |
| − | | 512 | + | | 512 |
| − | | 1024 | + | | 1024 |
| 2048 | | 2048 | ||
|- | |- | ||
| Line 134: | Line 134: | ||
| 1,2 ms | | 1,2 ms | ||
| 4 ms | | 4 ms | ||
| − | | 8,2 ms | + | | 8,2 ms |
|- | |- | ||
| Itemis | | Itemis | ||
| 72 ms | | 72 ms | ||
| 142 ms | | 142 ms | ||
| − | | 287 ms | + | | 287 ms |
| − | | 500 ms | + | | 500 ms |
| 1103 ms | | 1103 ms | ||
|} | |} | ||
| − | [[Image: | + | [[Image:EmfIndex ResponseTimeTypeQuery.png]]<br> |
| + | |||
| + | === Navigation Query required for convenient API === | ||
| + | |||
| + | {| border="1" | ||
| + | |- | ||
| + | | eObject.getResourceDescriptor() | ||
| + | | resource.getEObjects() | ||
| + | | resource.getReferences() | ||
| + | | reference.getTargetObject() | ||
| + | |||
| + | |- | ||
| + | | 7 µs | ||
| + | | 104 µs | ||
| + | | 220 µs | ||
| + | | 12 µs | ||
| + | |} | ||
| + | |||
| + | [[Image:EmfIndex ResponseTimeNavigationQueries.png]]<br> | ||
<br> | <br> | ||
Revision as of 04:05, 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 |
| eObject.getResourceDescriptor() | resource.getEObjects() | resource.getReferences() | reference.getTargetObject() |
| 7 µs | 104 µs | 220 µs | 12 µs |
