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why screen take long time to (d)etach from remote session and (R)eattach
why screen take long time to (d)etach from remote session and (R)eattach from local again?
Tue, 06 Dec 2011 08:37:58 -0500
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I'm observing an issue of screen often and don't know how to handle it:
usually I go back home after work and connect from home via ssh, take
over screen from remote and work from there.
next morning when I came back office I then need detach from remote and
attach it back locally, but the symptom that I often see while doing
1) hard disk flash crazy (means busy)
2) iotop tell me this:
Total DISK READ: 2.26 M/s | Total DISK WRITE: 0.00 B/s
TID PRIO USER DISK READ DISK WRITE SWAPIN IO> COMMAND
24441 be/4 ping 2.26 M/s 0.00 B/s ?unavailable? SCREEN -dR work1
3) system got slow in response, mostly due to HD busy , while overall
CPU is not high at all.
this typically last for at least 3 or 5 minutes.
when I recall back It looks this happened recently when I use "-dR" ,
previously seems when I just use -r I don't remember I ever run into
this (will try this one later).
anyone please send some hints on this..
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- why screen take long time to (d)etach from remote session and (R)eattach from local again?,