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I updated ubuntu 12.04 yesterday. In that update firefox, thunderbird, kernel and snmp packages were updated. After this my login time has increased from 5-10sec to 30-45sec. I surely think it is the snmp packages that are causing trouble. How do i fix those packages to get back my login time...?

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Have you rebooted more than once since the updates? Sometimes the first login time can be significantly greater than later logins. – 8128 May 28 '12 at 13:45
yes quite a lot of times... – tanmay.01 May 29 '12 at 4:18

You should first get some data, using bootchart ( ). So you can see what is taking time.

Then, once you have a rough idea, you can either : - disable service that are useless for you - try to see what take time

I would recommend to check before removing anything, of course. Removing snmp is harmless removing something like dkms may let you without working X if you use nvidia driver.

Do not act in hurry :)

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