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top: exploit the new library API for memory statistics

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This commit represents the pioneering attempt at using
the concept of 'chained' library requests in an effort
to reduce function call overhead. It required exposing
no more implementation details than were already shown
through the individual calls, yet is satisfied in one.

It is just such an approach that will prove invaluable
when it comes time to access individual /proc/##/data.
Programs could 'chain' only those 'results' structures
representing their current view independent of all the
fields any such programs might be prepared to display.

Thus the standard 'read', which wouldn't apply to task
level data very well (or efficiently), can now become
a 'read_chain' whereby the former PROC_FILL flags need
can be satisfied & yield the minimum open/close calls.

Signed-off-by: Jim Warner <james.warner@comcast.net>
This commit is contained in:
Jim Warner
2015-06-28 00:00:00 -05:00
committed by Craig Small
parent a05084f381
commit c3fd7473c5
3 changed files with 52 additions and 26 deletions
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22
top/top_nls.h
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@@ -74,17 +74,17 @@ enum norm_nls {
FIND_no_next_txt, FOREST_modes_fmt, FOREST_views_txt, GET_find_str_txt,
GET_max_task_fmt, GET_nice_num_fmt, GET_pid2kill_fmt, GET_pid2nice_fmt,
GET_sigs_num_fmt, GET_user_ids_txt, HELP_cmdline_fmt, IRIX_curmode_fmt,
LIMIT_exceed_fmt, MISSING_args_fmt, NAME_windows_fmt, NOT_onsecure_txt,
NOT_smp_cpus_txt, NUMA_nodebad_txt, NUMA_nodeget_fmt, NUMA_nodenam_fmt,
NUMA_nodenot_txt, OFF_one_word_txt, ON_word_only_txt, OSEL_casenot_txt,
OSEL_caseyes_txt, OSEL_errdelm_fmt, OSEL_errdups_txt, OSEL_errvalu_fmt,
OSEL_prompts_fmt, OSEL_statlin_fmt, RC_bad_entry_fmt, RC_bad_files_fmt,
SCROLL_coord_fmt, SELECT_clash_txt, THREADS_show_fmt, TIME_accumed_fmt,
UNKNOWN_cmds_txt, UNKNOWN_opts_fmt, USAGE_abbrev_txt, WORD_abv_mem_txt,
WORD_abv_swp_txt, WORD_allcpus_txt, WORD_another_txt, WORD_eachcpu_fmt,
WORD_exclude_txt, WORD_include_txt, WORD_noneone_txt, WORD_process_txt,
WORD_threads_txt, WRITE_rcfile_fmt, WRONG_switch_fmt, XTRA_badflds_fmt,
XTRA_fixwide_fmt, XTRA_warncfg_txt, XTRA_winsize_txt,
LIB_errormem_txt, LIMIT_exceed_fmt, MISSING_args_fmt, NAME_windows_fmt,
NOT_onsecure_txt, NOT_smp_cpus_txt, NUMA_nodebad_txt, NUMA_nodeget_fmt,
NUMA_nodenam_fmt, NUMA_nodenot_txt, OFF_one_word_txt, ON_word_only_txt,
OSEL_casenot_txt, OSEL_caseyes_txt, OSEL_errdelm_fmt, OSEL_errdups_txt,
OSEL_errvalu_fmt, OSEL_prompts_fmt, OSEL_statlin_fmt, RC_bad_entry_fmt,
RC_bad_files_fmt, SCROLL_coord_fmt, SELECT_clash_txt, THREADS_show_fmt,
TIME_accumed_fmt, UNKNOWN_cmds_txt, UNKNOWN_opts_fmt, USAGE_abbrev_txt,
WORD_abv_mem_txt, WORD_abv_swp_txt, WORD_allcpus_txt, WORD_another_txt,
WORD_eachcpu_fmt, WORD_exclude_txt, WORD_include_txt, WORD_noneone_txt,
WORD_process_txt, WORD_threads_txt, WRITE_rcfile_fmt, WRONG_switch_fmt,
XTRA_badflds_fmt, XTRA_fixwide_fmt, XTRA_warncfg_txt, XTRA_winsize_txt,
#ifndef INSP_OFFDEMO
YINSP_demo01_txt, YINSP_demo02_txt, YINSP_demo03_txt, YINSP_deqfmt_txt,
YINSP_deqtyp_txt, YINSP_dstory_txt,