Date: Tue, 7 Oct 2008 16:08:22 +0530 From: Ramachandran Sathyanarayanan <Ramachandran.Sathyanarayanan@aricent.com> To: "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org> Cc: Rajeshwar Patil <Rajeshwar.Patil@aricent.com> Subject: sleep is not working to avoid starvation among threads of same priority Message-ID: <B110A82B42E4E547B2A622349609CC1E2D21B5303C@GUREXMB02.ASIAN.AD.ARICENT.COM>
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Hi I hope this is the right mailer for this question. pls let us know your in= puts on this. Thanks Ram ________________________________ From: Rajeshwar Patil Sent: Tuesday, October 07, 2008 3:36 PM To: freebsd-questions@freebsd.org Cc: Ramachandran Sathyanarayanan; Rajeshwar Patil Subject: sleep is not working to avoid starvation among threads of same pri= ority Hi, I have two threads of same priority lets say thread A and thread B, thread = A is starving since thread B has got a for loop of size 100k. So, to avoid = starvation I am processing 1000 iterations of for loop(that of thread B) in= one batch and giving sleep of 1ms, but still thread A is starving. If I in= crease the batch size used in for loop from 1k to 10k then starvation of th= read A is little less whereas it should be more as Im increasing processing= time of thread B. I tried various combinations of sleeps and batches, but = I couldnt solve the starvation of thread A. Is the sleep right solution? I will be grateful if someone could answer on this. Thanks Rajeshwar ________________________________ "DISCLAIMER: This message is proprietary to Aricent and is intended solely = for the use of the individual to whom it is addressed. It may contain privi= leged or confidential information and should not be circulated or used for = any purpose other than for what it is intended. If you have received this m= essage in error,please notify the originator immediately. If you are not th= e intended recipient, you are notified that you are strictly prohibited fro= m using, copying, altering, or disclosing the contents of this message. Ari= cent accepts no responsibility for loss or damage arising from the use of t= he information transmitted by this email including damage from virus."
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