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Articles for the keywords: Adam Leventhal
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22 Apr 2013
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Top Ten Articles for last few Issues [30734]
Vol 182 Issues 1, 2 and 3 ; Vol 181 Issues 1, 2, 3 and 4; Vol 180 Issue 4
We track how frequently each article is viewed on the web site to determine which the readers consider the most important. For last week, the top 10 articles were:
- Reservation & Ref Reservation - An Explanation
- 10 Warning Signs Your New Boss Is a Jerk
- 7 Ways to Get Your CEO Fired
- Hiring Wisdom: Top 10 Ways to Guarantee Your Best People Will Quit
- What's new in pkgsrc-2013Q1
- What Good's An Android That Can't Make Calls? For NYPD, Plenty.
- More Than 6 Out of 10 Companies Approve of Personal Device Use for Work
- Is Outsourcing Losing Its Appeal?
- Why VMware Disk Backup Is Broken
- Big-Data Science Requires SDN, Internet2 Chief Says
The longer version of this article has list of top ten articles for the last 8 weeks.
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02 Mar 2013
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Adam Leventhal Ponders the Issue of Systems Software: Alive or Dead? [29981]
Far From a Dead Species, He Contends
A comment by a prospective employee sent Adam Leventhal on a mission. The comment echoed one of the applicant's college professors who asserted that systems programming was at a dead end. Leventhal defined four sorts of "systems programming." Among the four types are:
- supporting systems software
- accidental systems software
- replacement systems software
- intentional systems software
That said, is systems programming truly dead? No, Leventhal responds. "As more and more critical applications build on an interface, the more value there is in improving the systems software beneath it. Systems software is defined by the constraints; its a mission and a mindset."
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14 Dec 2012
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A Primer on ZFS Transaction Groups [28897]
Adam Leventhal Explains how ZFS Batches Data
ZFS transaction groups are groups of transactions (txg) that act on persistent state, Adam Leventhal posts in his explanation of how ZFS batches data. There are three active transaction group states: open, quiescing, or syncing. There may be up to three active txgs, and there is always a txg in the open state. In broad strokes, transactions operations that change in-memory structures are accepted into the txg in the open state, and are completed while the txg is in the open or quiescing states. The accumulated changes are written to disk in the syncing state.
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09 Apr 2012
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Summary of the Program at dtrace.conf(12) [25947]
Includes Videos of Important Segments
There is a convenient summary of the events at dtrace.conf(12) in a post by Adam Leventhal. The post is divided into several sections, including:
- User-land CTF and Dynamic Translators
- The D Language
- Work with DTrace
- DTrace with Oracle Enterprise Linux
- A ZFS DTrace Provider
- Whither DTrace
Leventhal includes links to videos dealing with the conference, one of which is Kris van Hees's presentation on the Oracle port to Linux and Eric Schrock on the D language additions in this release.
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17 Jan 2012
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ZFS+10: illumos Meetup [25271]
Updates on What Is New in ZFS at an Event Hosted Hosted for the illumos Community
In his post on dtrace.org Adam Leventhal summarizes the 10th anniversary celebration of the creation of ZFS. The post includes three videos on the subject, the first of which is with Matt Ahrens, co-creator of ZFS, who discusses the new stable ZFS interface designed for programmatic consumers of the solution. John Kennedy explains his work on the ZFS test suite, and Chris Siden of Delphix discusses his work on ZFS feature flags and Async Destroy, which allows datasets to be destroyed asynchronously in the background, which is especially helpful when gigantic datasets need to be erased, Leventhal observes.
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