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Deshaw Inc Interview Question for SDE1s


Country: India
Interview Type: Written Test



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

please,clafiry the question

- glebstepanov1992 December 23, 2013 | Flag Reply
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0
of 0 vote

Answer - implement garbage collection by reachability like in JVM. Make BFD or DFS from stack by the references, mark objects. All unmarcked objects are unreachable so your compaction gc will be able to collect them and reuse this space. Is it enough?
Maybe the question was to design datastructure for heap(PermgGen,Young,Tenured,Old,Eden etc.)?

- glebstepanov1992 December 24, 2013 | Flag Reply
Comment hidden because of low score. Click to expand.
Comment hidden because of low score. Click to expand.
2
of 2 votes

i dont think so, your object can be used not often, but still reachable , when some object that was recently used becomes unreachable very fast.

- glebstepanov1992 December 24, 2013 | Flag


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