Livelock vs deadlock software#

In a more relatable example: if you have one database, you could have millions of users reading from that database at the same time. Multi-threaded deals with race conditions, locking, async calls and can be very error prone if you are not granular about your understanding.

Livelock vs deadlock software#

It seems generally the popular consensus is that writing multi-threaded software is hard and complexity increases exponentially. The performance benefits of deciding between processes and threads to achieve parallelism is nuanced and varies from case to case. The third option is how Windows and UNIX operating systems handle deadlocks. To work around deadlock you must prepare and avoid conditions that lead to deadlocks, detect deadlocks and handle it once it has occurred, or ignore them altogether because they are very rare and you can reboot the system to correct if one has occurred.

Circular Wait: A set of processes are waiting for each other in circular form. No Preemption: A resource cannot be taken from a process unless the process releases the resource. Mutual Exclusion: One or more than one resource are non-shareable (Only one process can use at a time) Hold and Wait: A process is holding at least one resource and waiting for resources. The following situations happening simultaneously ensure deadlock:

Deadlock describes a situation in which a set of processes is blocked because each process is waiting holding onto a resource and waiting for a separate resource that is being held by a different process.