search for: fastzeromode

Displaying 2 results from an estimated 2 matches for "fastzeromode".

2019 Aug 23
22
cross-project patches: Add NBD Fast Zero support
...n in-memory nbd destination. Then I use a series of nbdkit filters to force the destination to behave in various manners: log logfile=>(sed ...|uniq -c) (track how many normal/fast zero requests the client makes) nozero $params (fine-tune how zero requests behave - the parameters zeromode and fastzeromode are the real drivers of my various tests) blocksize maxdata=256k (allows large zero requests, but forces large writes into smaller chunks, to magnify the effects of write delays and allow testing to provide obvious results with a smaller image) delay delay-write=20ms delay-zero=5ms (also to magni...
2019 Aug 27
0
Re: cross-project patches: Add NBD Fast Zero support
...on. Then I use a series of nbdkit > filters to force the destination to behave in various manners: > log logfile=>(sed ...|uniq -c) (track how many normal/fast zero > requests the client makes) > nozero $params (fine-tune how zero requests behave - the parameters > zeromode and fastzeromode are the real drivers of my various tests) > blocksize maxdata=256k (allows large zero requests, but forces large > writes into smaller chunks, to magnify the effects of write delays and > allow testing to provide obvious results with a smaller image) > delay delay-write=20ms delay-zer...