Quote of the week

So you might want to look into not the standard library implementation, but specific locking implementations for your particular needs. Which is admittedly very very annoying indeed. But don't write your own. Find somebody else that wrote one, and spent the decades actually tuning it and making it work.

Because you should never ever think that you're clever enough to write your own locking routines.. Because the likelihood is that you aren't (and by that "you" I very much include myself - we've tweaked all the in-kernel locking over decades, and gone through the simple test-and-set to ticket locks to cacheline-efficient queuing locks, and even people who know what they are doing tend to get it wrong several times).