Would love a video on Atomics, and lock free programming, acquire release semantics, modification order consistency etc. And if the "Happens-before" relationship with synchronization and sequence before concepts can be tied to this video too
Hi Arpit, how did you get so better with C Programming? What advise do you have for somebody who is a beginner? I have seen pthread, mutex in some C code but couldn't make any head or tail out of it. Please advise. Thank you in advance.
I am pretty average at C. But I learn on-the-go and that's what I would recommend you as well. Do not try to master on day 0, learn as and when you are implementing things.
Hi Arpit, hope you are doing good. Had a question, does databases have a ordering of tables as well? Like what table's row to lock first in case a transaction? I don't think that would be possible because we give an order of execution of commands to the db. like change row in table A first and then in B first, and some other code is asking to change B first and then A. we can do this by adding a transactional annotation on a method. am i mixing different concepts here?
No databases do not do this. This is only possible when you already know all the locks one would need which in case of database is not possible. Hence in the video I mentioned that databases run a deadlock detection algorithm and ensures that it never hits a deadlock. But if you are building a system where you can know beforehand all the locks you'll need then you can impose total ordering and avoid the deadlock.
Really loved this explanation on DeadLock❤ Arpit
Good Information! Thanks!!
The quality of content you are delivering , it deserves at least a million subscribes .
Would love a video on Atomics, and lock free programming, acquire release semantics, modification order consistency etc.
And if the "Happens-before" relationship with synchronization and sequence before concepts can be tied to this video too
Dropping in 40 mins. Touched upon internals of optimistic locking.
Amazing as always
Nice primer
pure algorithm👌
Hi Arpit, how did you get so better with C Programming? What advise do you have for somebody who is a beginner? I have seen pthread, mutex in some C code but couldn't make any head or tail out of it. Please advise. Thank you in advance.
I am pretty average at C. But I learn on-the-go and that's what I would recommend you as well.
Do not try to master on day 0, learn as and when you are implementing things.
Hello Arpit what are real-world scenarios where we can't take the approach as explained above to write dead lock-free code?
Databases. You may not know the order in locks are acquired by transactions.
Hi Arpit, hope you are doing good. Had a question, does databases have a ordering of tables as well? Like what table's row to lock first in case a transaction? I don't think that would be possible because we give an order of execution of commands to the db. like change row in table A first and then in B first, and some other code is asking to change B first and then A. we can do this by adding a transactional annotation on a method. am i mixing different concepts here?
No databases do not do this. This is only possible when you already know all the locks one would need which in case of database is not possible.
Hence in the video I mentioned that databases run a deadlock detection algorithm and ensures that it never hits a deadlock.
But if you are building a system where you can know beforehand all the locks you'll need then you can impose total ordering and avoid the deadlock.
Bhia screen zoom kr diya karo , kuch show nahi ho raha
Bhai, thode bade screen main dekh lo 😀
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No body loves thrill in production😆😆