Sync Gateway performance slowed to 1/20 previous speed

Mobile Sync Gateway
1

I have a bucket with some 880K documents. Previously the initial sync was yielding about 1K docs per second. Since yesterday, the initial sync has been transferring about 50 docs/sec (maybe less). It is almost as if the default size dropped from hundreds down to tens per batch.

I am doing a pull sync. I have tested an old version of the client code, and it does not work at the previous speed. So I believe I/we somehow mucked up either the gateway config or the Couchbase behind it.

Is there wiki page somewhere that suggests what to look at when trying to speed up the sync?

2

Apparently the Android Emulator can build up Jank and the sync becomes slow. When I defined another emulator, viola! it was running quickly again.

The sooner I manage to get this beastie running on true Android hardware, the better.

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