IBM Interview Question for Software Engineer / Developers






Comment hidden because of low score. Click to expand.
0
of 0 vote

deadlocks can be detected by the wait for graphs. Wait for graph has the nodes represented by the processes that are currently holding some resource. If the rows would be the processes and colums would be the process/es that are holding that resource.
running through this graph tells us if there is a cycle. if the cycle exists then break the cycle by killing one of the processes. which process is to be killed depends on the age of the process and the number of distinct cycles this resource is participating.

- Anonymous March 03, 2009 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

n a Wait-for Graph, processes are represented as nodes, and an edge from process Pi to Pj implies Pj is holding a resource that Pi needs and thus Pi is waiting for Pj to release its lock on that resource.

- Cookie May 10, 2009 | Flag Reply


Add a Comment
Name:

Writing Code? Surround your code with {{{ and }}} to preserve whitespace.

Books

is a comprehensive book on getting a job at a top tech company, while focuses on dev interviews and does this for PMs.

Learn More

Videos

CareerCup's interview videos give you a real-life look at technical interviews. In these unscripted videos, watch how other candidates handle tough questions and how the interviewer thinks about their performance.

Learn More

Resume Review

Most engineers make critical mistakes on their resumes -- we can fix your resume with our custom resume review service. And, we use fellow engineers as our resume reviewers, so you can be sure that we "get" what you're saying.

Learn More

Mock Interviews

Our Mock Interviews will be conducted "in character" just like a real interview, and can focus on whatever topics you want. All our interviewers have worked for Microsoft, Google or Amazon, you know you'll get a true-to-life experience.

Learn More