Synchronous and asynchronous workloads are everywhere

In this video, I’ll explain synchronous vs asynchronous operations and then discuss examples where this shows up. In programming, real-time messaging, database systems, and operating systems.

0:00 Definition Synchronous vs Asynchronous
4:15 sync vs async In Programming
7:50 Sync vs Async In Real-time messaging
17:00 Sync vs Async In Database Replication
23:50 Sync vs Async in Database Commits
29:30 Sync vs Async in fsync Operating System cache

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Stay Awesome,
Hussein

[bbbbburton]

Nice detail you got in to! I enjoy working with message queues. There is something rewarding about returning a successful response to the client, and then just letting an idle worker pick up the job and execute it in the background.

[krishnachaitanya]

I had trouble in the past understanding why I am not getting a response directly to a REST call, but just a request ID. I thought the REST API was badly designed (in the sense that response is not given directly). At a certain level, I knew it had something to do with allowing the backend to have some more time in processing it - but after watching this video, its like a huge cloud of mist suddenly cleared.
Thanks a lot @Hussein. I loved it

[vcqclcu]

Good one Hussein ! Learned some stuff. Sync is basically better for small tasks and is usually easier to implement than async.

[jefersonnl]

I'm from the days when DBA's worried about consistency would prefer to bypass the file system entirely and write directly to disk to guarantee ACID. Some may remember it as Raw Partitions. It was the closest you could get to bare metal in order to guarantee complete transaction uniformity and data cohesion, almost bypassing the OS completely, giving the DBMS complete control over a disk partition. Nowadays filesystems became very trustworthy and tunable, to the point I haven't seem people using it anymore, and it is generally regarded as a thing of the past. Makes a lot of sense not to use it, if we don't need it anymore due to OS/Filesystem improvements, coz it had several disadvantages, was hard to work with, and was not recommended for those without very good knowledge of their respective DBMS.

[nafasm]

Thanks a lot Hussein, such a wonderful explanation

[marslogics]

as always, great content and explained with enough examples. Keep it up.

[dcnlyf]

Thanks man.... This was very insightful

[Thanveershah]

Is writing functions and views to get the response, faster in SQL than doing that function on the backend code?

[yt.neerajkumar]

Three things you will get in this video
1. Deep Dive into Async vs Sync
2. Top Level Examples
3. Entertainment (Lots of laughs)

Thank you so much @hnasr <3

[KeepLearingR]

I have this question been asked during my interview :)

[gyanookharel]

What if my next step depends on the result of that method ? Do I have to wait anyway until I get the result even though that method is async ?

[SurajPatelCS]

Razorpay a leading payment gateway in India facing an outage. Down as of now

[jetmirberisha]

Guy went from async/await to the buffer cache

[leagonzalezcuello]

I think asynchronous operations are like tasks to do later. If I have an operation to do and it is async, "Nah thanks, I will do it later" And when I finish the current task, then I do the async operation

[karun]

Why don't u provides a tutorial of implemeting aysnchrous call from scratch in a synchronous language like c or another without using any inbuilt keywords like async/await

[derickasamani]

I prefer synchronicity in my close relationships *db pun intended* asynchronicities in my distant relationships. :)

[satyamkumar]

you didn't get a haircut from last week of June