Displaying 3 results from an estimated 3 matches for "restorectx".
2006 Mar 01
3
vtimestamp skew, after restorectx()
Hello,
I''m using the below dtrace script to capture the flow and times of
kernel functions, from an ioctl() call. After an entry into
restorectx(), the trace of startimestamp - vtimestamp makes a dramatic
jump downwards. Here''s the snippet showing the jump...
6 -> di_checkmem 8 220176600
6 <- di_checkmem 7
220176700 100...
2008 Dec 02
18
How to dig deeper
...t; , elapsed);
exit(0);
}
I gives me the timestamp for every fbt call during a write system call.
A snippet is here below
8 <- schedctl_save timestamp : 1627201334052600
8 <- savectx timestamp : 1627201334053000
0 -> restorectx timestamp : 1627202741110300 <-------- difference = 1.407.057.300
0 -> schedctl_restore timestamp : 1627202741115100
0 <- schedctl_restore timestamp : 1627202741116100
Visible is that the thread of for 1.4 s off...
2006 Mar 30
8
iostat -xn 5 _donot_ update: how to use DTrace
on Solaris 10
5.10 Generic_118822-23 sun4v sparc SUNW,Sun-Fire-T200
I run
#iostat -xn 5
to monitor the IO statistics on SF T2000 server. The system also have a heavy IO load, for some reason iostat donot refresh (no any update). It seems like iostat is calling pause() and stucked there. Also my HBA driver''s interrupt stack trace indicates there is a lot of swtch(), the overall IOPS