APFS in Detail: Performance

This series of posts covers APFS, Apple’s new filesystem announced at WWDC 2016. See the first post for the table of contents. Performance APFS claims to be optimized for flash. Flash memory (NAND) is the stuff in your speedy SSD. Apple changed the computing industry when it put flash into the iPod and iPhone, volumes for which [...]





Posted on June 19, 2016 at 7:36 pm by ahl · Permalink · 11 Comments
In: Software · Tagged with: , , , , , ,

Hardware Engineer

Back at Fishworks, my colleagues had a nickname for me: Adam Leventhal, Hardware Engineer. I wasn’t designing hardware; I wasn’t even particularly more involved with hardware specs. The name referred to my preternatural ability to fit round pegs into square holes, to know when parts would bend but not break (or if they broke how [...]





Posted on February 12, 2012 at 8:01 pm by ahl · Permalink · 10 Comments
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Flash news I wish I could read

For a short while, I ran the flash memory strategy at Sun and then Oracle, so I still keep my ear to the ground regarding flash news. That news is often frustratingly light — journalists in the space who are fully capable of providing analysis end up brushing the surface. With a tip of the [...]





Posted on July 1, 2011 at 6:46 pm by ahl · Permalink · 3 Comments
In: Flash · Tagged with: , , , , , , , , ,

Fishworks history of SSDs

This year’s flash memory summit got me thinking about our use of SSDs over the years at Fishworks. The picture of our left is a visual history of SSD evals in rough chronological order from the oldest at the bottom to the newest at the top (including some that have yet to see the light [...]





Posted on August 17, 2010 at 2:25 pm by ahl · Permalink · Comments Closed
In: Fishworks · Tagged with: , , , , , ,