Comments (4)
Will this also help collator calling back to java for unicode comparison?
from cbforest.
@pasin No. Article suggested to less call from native to java code by passing all values in one JNI call from java to native.
If collator can consolidate the calls from native to java or reduce the number of calls, it will improve the performance. We need to review collator codes.
from cbforest.
Can you give examples of how we could optimize particular calls?
from cbforest.
Java_com_couchbase_cbforest_QueryIterator_next()
calls getEnum(env, self)
to obtain the pointer of C4QueryEnumerator. In side the getEnum(env, self)
, it calls env->GetLongField(self, kHandleField);
which is JNI call from native to Java code. By passing class pointer from Java to native, we could avoid this JNI call. In case of iterating 100 or 1K docs, we could same number of JNI calls.
https://github.com/couchbaselabs/cbforest/blob/master/Java/jni/native_queryIterator.cc#L35
from cbforest.
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from cbforest.