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[color=red]ndquot[/color]: Quota table size = (maxusers x 10) + max_nprocs
[color=red]maxuproc[/color]: User process limit = max_nprocs - 5
[color=red]ptys[/color]
Solaris 8 dynamically sizes the number of ptys available to a system, so you are less likely to run into pty starvation than was the case under Solaris 2.5.1-7. There are still hard system limits that are set based upon hardware configuration, and it may be necessary to increase the number of ptys manually as in Solaris 2.5.1-7.
If the system is suffering from pty starvation, the number of ptys available can be increased by increasing pt_cnt above the default of 48. Solaris 2.5.1 and 2.6 systems should not have pt_cnt set higher than 3844 due to limitations with the telnet and rlogin daemons. Solaris 7 does not have this restriction, but there may be other system issues that prevent setting pt_cnt arbitrarily high. Once pt_cnt is increased, a reconfiguration boot (boot -r) is required to build the ptys.
If pt_cnt is increased, some sources recommend that other variables be set at the same time. Other sources (such as the Solaris2 FAQ) suggest that this advice is spurious and results in a needless consumption of resources. See the notes below before making any of these changes; setting the values too high may result in wasted memory. In any case, one form of these recommendations is:
[color=red]npty[/color]: Set to pt_cnt (see the note below)
[color=red][color=red]nautopush[/color][/color]: Set to twice the value of pt_cnt
[color=red]sadcnt[/color]: Set to same value as pt_cnt
npty limits the number of BSD ptys. These are not usually used by applications, but may need to be increased on a system running a special service. In addition to setting npty in the /etc/system file, the /etc/iu.ap file will need to be edited to substitute the value npty-1 in the third field of the ptsl line. After both changes are made, a boot -r is required for the changes to take effect. Note that Solaris does not support any more than 176 BSD ptys in any case.
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| TAG标签: | 参数 如何 /color color red 回复 max_nprocs 需要 机器 |
