Viewing profile — prakashsurya

Well, if the exact same semantics were required (i.e. always evict the oldest buffer), then it's really O(M*n) where M is the number of bytes to evict, and n being the number of su…

Currently, the number of sublists created is equal to the number of cores on the system. While it'd be fairly trivial to extend the code to make it easy for an admin to define the …

Could not have said it better myself. It's disappointing to see a post with such unfounded nonsense rated so high on HN.

yup, that's why I added "by default". a user won't get that functionality without explicitly asking for it.

Error detection can always be used, but error correction may or may not be available (it depends on the type of block). Metadata blocks are redundant even on a single drive pool; s…

No problem. It's really a shame to have such a high bar for using dedup. It either fits a given workload extremely well, or can be extremely detrimental. There's been talk in the d…

There is work in progress to add the ability to remove a device from a pool. So, hopefully in the not too distant future, that work will land in illumos and migrate to all the down…

No, that's flat out not true. I've seen that metric thrown around when talking about the "dedup" feature of ZFS, but honestly, don't use dedup unless you know what you're doing. It…

Yes, I run ZFS on Linux on my single drive laptop currently. ZFS doesn't _need_ multiple drives to work well, but it is capable of using them if they're available. One can also run…

FWIW, if there's anybody interested in learning about the ZFS code base, we'd love help porting patches from ZoL into Illumos and vice versa. That's a good way to get a new develop…

I can't recall the exact detail from memory, but I believe #1 has to do with the fact that zfs creates/clones/snapshots/etc are done in "syncing" context. Thus, each command has to…

Is dtrace available on Linux? I know there's been work towards that goal, but I haven't payed much attention to it recently.