Normally, no environment variables need to be set. If defined debug information will be printed to stderr. If set to verbose additional information will be printed. This will result in undefined behavior for invalid use of the API, but can reduce CPU use for apps that are known to be error free. Note that this will override extensions override configured using driconf. If this variable is set to year X, only extensions defined on or before year X will be reported.
This is to work-around a bug in some games where the extension string is copied into a fixed-size buffer without truncating. If the extension string is too long, the buffer overrun can cause the game to crash. This is a work-around for that.
FC is an optional suffix that indicates a forward compatible context. Examples: 2. Valid values are integers, such as This takes higher precedence over more general process name override e. If set to false , enables the on-disk shader cache when it is disabled by default.
Should be set to a number optionally followed by K , M , or G to specify a size in kilobytes, megabytes, or gigabytes. By default, gigabytes will be assumed. And if unset, a maximum size of 1GB will be used. A separate cache might be created for each architecture that Mesa is installed for on your system. These statistics are printed when the app terminates.
The file paths are relative to the cache directory and do not include suffixes, referencing both the cache DB and its index file. Mesa-DB cache eviction algorithm calculates weighted score for the cache items. The weight is doubled based on the last access time of cache entry. By default period of weight doubling is set to one month. Period value is given in seconds. This variable takes an absolute path to the list file. The list file must exist at initialization for updating to occur.
