Re: [sqlite] Parallel reading can be slow on APFS

2018-11-12 Thread Jens Alfke
> On Oct 29, 2018, at 7:13 PM, Simon Slavin wrote: > > This post is about a problem with Apple's new APFS file system. The problem > will affect you only if you have multiple reads/writes happening at the same > time. The problem involves merely slowing of performance, not corruption of >

Re: [sqlite] Parallel reading can be slow on APFS

2018-11-05 Thread Rowan Worth
"The problem will affect you only if you have multiple reads/writes happening at the same time." ie. The problem will only manifest if the user is doing anything at all with their computer? :P Interesting analysis - thanks for sharing. -Rowan On Tue, 30 Oct 2018 at 10:13, Simon Slavin wrote:

Re: [sqlite] Parallel reading can be slow on APFS

2018-10-30 Thread Darren Duncan
I find it strange that there's a big global lock problem with APFS considering one of the biggest design and selling points was that APFS did NOT use global locks like the old HFS+ did. -- Darren Duncan On 2018-10-29 7:13 PM, Simon Slavin wrote: This post is about a problem with Apple's new

[sqlite] Parallel reading can be slow on APFS

2018-10-29 Thread Simon Slavin
This post is about a problem with Apple's new APFS file system. The problem will affect you only if you have multiple reads/writes happening at the same time. The problem involves merely slowing of performance, not corruption of databases or incorrect answers being returned by SQLite.