バージョン 10 (更新者: wu, 13 年 前)

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* 4store 配置

* Load performance

* Sparql query performance

4store 配置

$ cd $4STORE_HOME/bin
$ ./4s-backend-setup allie
$ ./4s-backend allie
./4s-import -v allie --format ntriples datapath --model http://myURI.com

Configuration consideration (refer to  http://4store.org/):

Here specify the cluster and segmentation values:

4s-backend-setup --node 0 --cluster 1 --segments 4 demo

The number of segments should be a power of 2, parallelisation depends on segmentation. As a rule of thumb try a power of 2 close to twice as many segments as there are physical CPUs or CPU cores on the system, but depending on the workload you may find less or more work better.

Load Performance

Allie upload

Approach 1: Default setting (2 segments)

About 12 minutes

Approach 2: 8 segments

About 13 minutes

Segment setting makes no too much difference.

PDBJ upload

Over 4 days(4.45 days)

Uniprot upload

DDBJ upload

Sparql query performance

Allie query performance

Query\time(ms) time 1 time 2 time 3 time 4time 5
case1 XXXXX
case2 220 225 212 222 215
case3 XXXXX
case4 XXXXX
case5 68245 64945 67070 67703 60794

PDBJ query performance

Query\time(ms) time 1 time 2 time 3 time 4time 5
case1 3639 1024 1026 1024 1026
case2 1024 2027 2024 1027 1024
case3 97728 131 134 128 134
case4 2027 1023 2027 2024 1023

Uniprot query performance

DDBJ query performance