similar to: Dedupe asynchronous mode?

Deduplication was committed last night by Mr. Bonwick: > Log message: > PSARC 2009/571 ZFS Deduplication Properties > 6677093 zfs should have dedup capability http://mail.opensolaris.org/pipermail/onnv-notify/2009-November/010683.html Via c0t0d0s0.org.

Hi, Created a zpool with 64k recordsize and enabled dedupe on it. zpool create -O recordsize=64k TestPool device1 zfs set dedup=on TestPool I copied files onto this pool over nfs from a windows client. Here is the output of zpool list Prompt:~# zpool list NAME SIZE ALLOC FREE CAP DEDUP HEALTH ALTROOT TestPool 696G 19.1G 677G 2% 1.13x ONLINE - When I ran a

I created a zfs pool with dedup with the following settings: zpool create data c8t1d0 zfs create data/shared zfs set dedup=on data/shared The thing I was wondering about was it seems like ZFS only dedup at the file level and not the block. When I make multiple copies of a file to the store I see an increase in the deup ratio, but when I copy similar files the ratio stays at 1.00x. -- This

On Jun 12, 2011, at 5:31 PM, Sohail Somani wrote: > On 11-06-12 7:40 PM, John McCall wrote: >> On Jun 12, 2011, at 2:14 PM, Cameron Zwarich wrote: >> >>>> On Jun 12, 2011, at 1:25 AM, Duncan Sands wrote: >>>> >>>>>> Hi Sohail, >>>>>> >>>>>>>> Is LLVM expressive enough to represent asynchronous

On Jun 13, 2011, at 12:29 AM, John McCall wrote: > Let me make an analogy. We live in Germany. Sohail wants to drive to Spain. Duncan told him to go through France. You and Cameron are saying that the traffic in France is awful, and some friends who went to Italy didn't go through France. I am trying to point out that Italy is not Spain, even though they are both on the Mediterranean,

On Jun 13, 2011, at 10:30 AM, Jakob Stoklund Olesen wrote: > On Jun 13, 2011, at 12:29 AM, John McCall wrote: >> Let me make an analogy. We live in Germany. Sohail wants to drive to Spain. Duncan told him to go through France. You and Cameron are saying that the traffic in France is awful, and some friends who went to Italy didn't go through France. I am trying to point out that

On 11-06-12 7:40 PM, John McCall wrote: > On Jun 12, 2011, at 2:14 PM, Cameron Zwarich wrote: > >> > On Jun 12, 2011, at 1:25 AM, Duncan Sands wrote: >> > >>> >> Hi Sohail, >>> >> >>>> >>> Is LLVM expressive enough to represent asynchronous exceptions? >>> >> >>> >> not currently. The

 Hi, list,     I recently begin to study samba source code. Now I have some questions to ask. Can you give me some help?     The first question is what the relationship between samba versions(such as 3.x.x , 4.x.x) and samba3/samba4. In samba source code, I find two directories, souce3 and soure4. Do they mean  samba3 and samba4?  Actually, almost all docs in samba are about samba3, where to find

The long term plan is to get all of Dovecot disk I/O asynchronous. The first step to that direction would be to make dbox/mdbox I/O asynchronous. This might also allow mbox/maildir to become partially asynchronous. http://www.dovecot.org/list/dovecot/2009-December/045481.html already started describing how the lib-storage API could be changed to support high-latency storages. Adding support for

Hi, We are considering using a ZFS based storage as a staging disk for Networker. We''re aiming at providing enough storage to be able to keep 3 months worth of backups on disk, before it''s moved to tape. To provide storage for 3 months of backups, we want to utilize the dedup functionality in ZFS. I''ve searched around for these topics and found no success stories,

# HG changeset patch # User Ian Campbell <ian.campbell@citrix.com> # Date 1345046301 -3600 # Node ID 7cec0543f67cefe3755bbad0c2262fa2e820d746 # Parent 30bf79cc14d932fbe6ff572d0438e5a432f69b0a libxl: make domain resume API asynchronous Although the current implementation has no asynchromous parts I can envisage it needing to do bits of create/destroy like functionality which may need async

On Jun 12, 2011, at 11:24 PM, Bill Wendling wrote: > On Jun 12, 2011, at 4:40 PM, John McCall wrote: > >> On Jun 12, 2011, at 2:14 PM, Cameron Zwarich wrote: >> >>> On Jun 12, 2011, at 1:25 AM, Duncan Sands wrote: >>> >>>> Hi Sohail, >>>> >>>>> Is LLVM expressive enough to represent asynchronous exceptions?

On 2011-06-12, at 4:40 PM, John McCall wrote: > On Jun 12, 2011, at 2:14 PM, Cameron Zwarich wrote: > >> On Jun 12, 2011, at 1:25 AM, Duncan Sands wrote: >> >>> Hi Sohail, >>> >>>> Is LLVM expressive enough to represent asynchronous exceptions? >>> >>> not currently. The first step in this direction is to get rid of the invoke

Hello, Is there any straightforward way to see whether Samba is using "asynchronous i/o"? In other words, if you specify in smb.conf to use aio for all transfers larger than 1 KB (pretty much everything), how can you tell that aio is actually being used? Are there any counters in Linux or in some samba logs that you can see incrementing over time? Thanks in advance. -- Andy

On 11-06-12 12:01 AM, Sohail Somani wrote: > Is LLVM expressive enough to represent asynchronous exceptions? > --------------------------------------------------------------- > > Summary: Need new LLVM instructions or extending of all instructions. > > C++ exceptions are synchronous: the compiler knows when/where they are > being raised. > > Asynchronous exceptions can

On Jun 12, 2011, at 4:40 PM, John McCall wrote: > On Jun 12, 2011, at 2:14 PM, Cameron Zwarich wrote: > >> On Jun 12, 2011, at 1:25 AM, Duncan Sands wrote: >> >>> Hi Sohail, >>> >>>> Is LLVM expressive enough to represent asynchronous exceptions? >>> >>> not currently. The first step in this direction is to get rid of the

Hi everyone, This patchset is the latest approach I''m using for the Ceph storage daemon to keep track of which data has safely committed to disk. The basic idea is to not use the (problematic) user transaction ioctls at all. Instead, the daemon quiesces its own write requests, initiates an async snapshot, and then continues. The snapshot approach is nice because it provides rollback.

Hi, Out of pure curiosity, I was wondering, what would happen if one tries to use a regular 7200RPM (or 10K) drive as slog or L2ARC (or both)? I know these are designed with SSDs in mind, and I know it''s possible to use anything you want as cache. So would ZFS benefit from it? Would it be the same? Would it slow down? I guess it would slow things down, because it would be trying to

On Jun 12, 2011, at 2:14 PM, Cameron Zwarich wrote: > On Jun 12, 2011, at 1:25 AM, Duncan Sands wrote: > >> Hi Sohail, >> >>> Is LLVM expressive enough to represent asynchronous exceptions? >> >> not currently. The first step in this direction is to get rid of the invoke >> instruction and attach exception handling information to basic blocks. See

Hi all, I''ve been working on the win32-pipe library (again) and I''ve reworked the interface. Instead of Pipe.new_server or Pipe.new_client, there''s now a base Pipe class, with Pipe::Server and Pipe::Client subclasses. You can find the latest code in the CVS repo. Oh, and you''ll need to update your windows-pr library with the latest from CVS if you want to