http://bugzilla.novell.com/show_bug.cgi?id=525750
Summary: GZipStream very slow when processing HTTP stream
Classification: Mono
Product: Mono: Class Libraries
Version: 2.4.x
Platform: Other
OS/Version: Other
Status: NEW
Severity: Normal
Priority: P5 - None
Component: CORLIB
AssignedTo: [email protected]
ReportedBy: [email protected]
QAContact: [email protected]
Found By: ---
I have a situation where I want to decompress gzipped data on a web server. On
the server exists an actual gzipped XML file - the server is not performing
compression on the fly to facilitate in transfer rates.
When I create a GZipStream into which I pass the HTTP stream from
HttpWebResponse, I don't get access to the decompressed stream for about 1.5
minuets.
However, if I perform the same HttpWebRequest and first save the gzipped stream
to disk, and then pass a local file stream to GZipStream to perform the exact
same decompression on the same file, I can access the decompressed data in
about two seconds (this includes the time it takes to download the data to disk
as well).
There's some pathologically slow about this:
using (var s = ((HttpWebResponse)request.GetResponse ()).GetResponseStream ())
{
using (var gs = new GZipStream (s, CompressionMode.Decompress)) {
// work with gs to access the decompressed data
}
}
Test case to follow.
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