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...