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- Parameter task-max in version 4.0
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тАО11-17-2003 05:48 AM
тАО11-17-2003 05:48 AM
Hi!! I checked that in version 5.1B doesn't exist the task-mask parameter (that exist in version 4.0). I'd like to know if exist a similar parameter to version 5.1B.
Thanks in Advance.
Thanks in Advance.
Solved! Go to Solution.
2 REPLIES 2
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тАО11-17-2003 06:36 PM
тАО11-17-2003 06:36 PM
Solution
Here is a short list of parameters no longer used in 5.x:
Note also that in 5.x, all tuning parameters use underscores '_' rather than
dashes '-'.
message-buffer-size = 40960 No longer used/needed
num-of-sems = 200 No longer used/needed
task-max = 4117 No longer used/needed
proc )
aio-max-num = 512 No longer used/needed
vm-mapentries = 16384 Set internally to maximum value
(entry no longer needed)
vm-maxvas = 0x40000000000 now set with
max_per_proc_address_space in proc subsystem
vm-vpagemax = 0x20000000 Set internally to maximum value
(entry no longer needed)
Note also that in 5.x, all tuning parameters use underscores '_' rather than
dashes '-'.
message-buffer-size = 40960 No longer used/needed
num-of-sems = 200 No longer used/needed
task-max = 4117 No longer used/needed
proc )
aio-max-num = 512 No longer used/needed
vm-mapentries = 16384 Set internally to maximum value
(entry no longer needed)
vm-maxvas = 0x40000000000 now set with
max_per_proc_address_space in proc subsystem
vm-vpagemax = 0x20000000 Set internally to maximum value
(entry no longer needed)
Help() { FirstReadManual(urgently); Go_to_it;; }
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тАО11-17-2003 10:58 PM
тАО11-17-2003 10:58 PM
Re: Parameter task-max in version 4.0
The task_max parameter is not longer defined in /etc/sysconfigtab.
However, there are still some remnants in v5.1X
It's value is now derived from the value of nproc
task_max = nproc + 1 (1)
while nproc is derived from maxusers
nproc = 20 + 8 * maxusers (2)
Combining (1) and (2)gives
task_max = 21 + 8 * maxusers
In other words, increase maxusers in order to increase task_max.
You can find these equations in the manpage of sys_attrs_ipc.
BTW, you should read also sys_attrs_proc manpage for the behaviour of maxusers in v5.
Joris
However, there are still some remnants in v5.1X
It's value is now derived from the value of nproc
task_max = nproc + 1 (1)
while nproc is derived from maxusers
nproc = 20 + 8 * maxusers (2)
Combining (1) and (2)gives
task_max = 21 + 8 * maxusers
In other words, increase maxusers in order to increase task_max.
You can find these equations in the manpage of sys_attrs_ipc.
BTW, you should read also sys_attrs_proc manpage for the behaviour of maxusers in v5.
Joris
To err is human, but to really faul things up requires a computer
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