January 2020
Intermediate to advanced
532 pages
13h 31m
English
Content preview from Hands-On Design Patterns and Best Practices with Julia
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Adjusting system kernel parameters
The Linux operating system has a limit on the size of shared memory. To find out what that is, we can use the ipcs command:
The E unit may look a little unfamiliar. It's in exabytes, which basically mean 18 zeros: kilo, mega, giga, tera, peta, and exa. Get it? So, we're in luck here, because the limit is so high that we will probably never reach. However, if you see a small number, then you may need to reconfigure the system. The three kernel parameters are as follows:
- Maximum number of segments (SHMMNI)
- Maximum segment size (SHMMAX)
- Maximum total shared memory (SHMALL)
We can find out the actual values ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.