[Spice-devel] A question about spice client and server cache

[xuzhinong999]

Hi, All,
 
      A simple question about cache processing of spice client and server. From source code, i found that there are 3 types of cache in spice server:
1. in qxl driver, for QUIC compression, there is image cache
2. in spice server, red_glz_compress_image method method will use a Dictionary to cache uncompressed images
3. in spice server, red_compress_image method (fill_bits method will call this method) will cache the compressed images in display_channel->pixmap_cache.
 
      My question is : why spice server take these several cache mechanisms? How these caches be released? Thanks.
 
Bill
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