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- PPPPMMMMSSSSTTTTOOOORRRREEEE((((1111)))) PPPPMMMMSSSSTTTTOOOORRRREEEE((((1111))))
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- NNNNAAAAMMMMEEEE
- ppppmmmmssssttttoooorrrreeee - modify performance metric values
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- SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
- ppppmmmmssssttttoooorrrreeee [----hhhh _h_o_s_t] [----iiii _i_n_s_t_a_n_c_e_s] [----nnnn _p_m_n_s_f_i_l_e] _m_e_t_r_i_c_n_a_m_e _v_a_l_u_e
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- Under certain circumstances, it is useful to be able to modify the values
- of performance metrics, for example to re-initialize counters or to
- assign new values to metrics that act as control variables.
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- ppppmmmmssssttttoooorrrreeee changes the current values for the nominated instances of a
- single performance metric, as identified by _m_e_t_r_i_c_n_a_m_e and the list of
- instance identifiers following the ----iiii argument. _i_n_s_t_a_n_c_e_s must be a
- single argument, with elements of the list separated by commas and/or
- white space. By default all instances of _m_e_t_r_i_c_n_a_m_e will be updated.
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- Normally ppppmmmmssssttttoooorrrreeee operates on the default Performance Metrics Name Space
- (PMNS), however if the ----nnnn option is specified an alternative namespace is
- loaded from the file _p_m_n_s_f_i_l_e.
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- Unless directed to another host by the ----hhhh option, ppppmmmmssssttttoooorrrreeee will interact
- with the Performance Metric Collector Daemon (PMCD) on the local host.
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- The interpretation of _v_a_l_u_e is dependent on the syntax used in its
- specification and the underlying data type of _m_e_t_r_i_c_n_a_m_e, as follows.
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- 1. If the metric has an iiiinnnntttteeeeggggeeeerrrr type, then _v_a_l_u_e should be an optional
- leading hyphen, followed either by decimal digits or ``0x'' and some
- hexadecimal digits. ``0X'' is also acceptable in lieu of ``0x''.
- See ssssttttrrrrttttoooollll(3C) and the related routines.
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- 2. If the metric has a ffffllllooooaaaattttiiiinnnngggg ppppooooiiiinnnntttt type, then _v_a_l_u_e should be either
- in the form of an integer described above, or a fixed point number,
- or a number in scientific notation. See ssssttttrrrrttttoooodddd(3C).
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- 3. If the metric has a ssssttttrrrriiiinnnngggg type, then _v_a_l_u_e is interpreted as a
- literal string of ASCII characters.
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- 4. If the metric has an aaaaggggggggrrrreeeeggggaaaatttteeee type, then an attempt is made to
- interpret _v_a_l_u_e as an integer, else a floating point number, else a
- string. In the first two cases, the minimal word length encoding is
- used, e.g. ``123'' would be interpreted as a 4-byte aggregate,
- ``0x100000000'' would be interpreted as an 8-byte aggregate.
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- The output reports the old value and the new value for each updated
- instance of the requested metric.
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- FFFFIIIILLLLEEEESSSS
- ////vvvvaaaarrrr////ppppccccpppp////ppppmmmmnnnnssss////* default PMNS specification files
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- PPPPaaaaggggeeee 1111
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- PPPPMMMMSSSSTTTTOOOORRRREEEE((((1111)))) PPPPMMMMSSSSTTTTOOOORRRREEEE((((1111))))
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- SSSSEEEEEEEE AAAALLLLSSSSOOOO
- ppppmmmmccccdddd(1), ppppmmmmcccchhhhaaaarrrrtttt(1), ppppmmmmiiiinnnnffffoooo(1), ppppmmmmvvvvaaaallll(1), ssssttttrrrrttttoooodddd(3C) and ssssttttrrrrttttoooollll(3C).
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- DDDDIIIIAAAAGGGGNNNNOOOOSSSSTTTTIIIICCCCSSSS
- Two messages indicate a mismatch between the internal data type for
- _m_e_t_r_i_c_n_a_m_e and the _v_a_l_u_e provided.
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- The value "???" is out of range for the data type (PM_TYPE_...)
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- The value "???" is incompatible with the data type (PM_TYPE_...)
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- PPPPaaaaggggeeee 2222
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