taskpolicy.tproj/taskpolicy.8

   1 .Dd 2/21/13
   2 .Dt taskpolicy 8
   3 .Os Darwin
   4 .Sh NAME
   5 .Nm taskpolicy
   6 .Nd execute a program with an altered I/O or scheduling policy
   7 .Sh SYNOPSIS
   8 .Nm
   9 .Op Fl d Ar policy
  10 .Op Fl b
  11 .Ar program
  12 .Oo
  13 .Ar arg1
  14 .Op Ar ...
  15 .Oc
  16 .Sh DESCRIPTION
  17 The
  18 .Nm
  19 program uses the
  20 .Xr setiopolicy_np 3
  21 and
  22 .Xr setpriority 2
  23 APIs to execute a program with altered I/O or scheduling policies. All
  24 children of the specified program also inherit these policies.
  25 .Pp
  26 .Nm
  27 accepts the following flags and arguments:
  28 .Bl -tag -width "d policy " -offset indent
  29 .It Fl d Ar policy
  30 Run the program after calling
  31 .Xr setiopolicy_np 3
  32 with an iotype of IOPOL_TYPE_DISK, a scope of IOPOL_SCOPE_PROCESS, and the
  33 specified policy. The argument can either be an integer, or a symbolic string
  34 like "default" or "throttle", which is interpreted case-insensitively.
  35 .It Fl g Ar policy
  36 Run the program after calling
  37 .Xr setiopolicy_np 3
  38 with an iotype of IOPOL_TYPE_DISK, a scope of IOPOL_SCOPE_DARWIN_BG, and the
  39 specified policy. The argument is interpreted in the same manor as
  40 .Fl d .
  41 .It Fl b
  42 Run the program after calling
  43 .Xr setpriority 2
  44 with a priority of PRIO_DARWIN_BG.
  45 .El
  46 .Pp
  47 .Sh SEE ALSO
  48 .Xr setpriority 2 ,
  49 .Xr setiopolicy_np 3