[Boost-users] Increase iostream zlib filter buffer size

Subject: [Boost-users] Increase iostream zlib filter buffer size
From: rajiv82 (rajiv82_at_[hidden])
Date: 2011-03-14 14:49:56

I am using boost serialization(binary_oarchive) with iostream zlib filter.
It is working fine but its too slow(takes 10hrs). After debugging I could
see the buffer size as 4KB. My data is about 600MB.

How can I increase the size of buffer to say 10MB. 

I tried following options:-

1. passing buffer size in zlib_compressor.
2. Redefining BOOST_IOSTREAMS_DEFAULT_DEVICE_BUFFER_SIZE to 10485760

But none of above seems to work.

Please guide.

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