12-31-2019
Hi Neo,
my 2 cents:
You maybe did so but if not, knowing the type of process it involves, I would have chosen as you did a calm period for the task, and to not waste proc time due to the different caches, try to optimize what I can/ where I can e.g. not sure you can change the cache ration of the FS or underlying storage ( I suppose that is more the provider's duty...) but you have access to your RDBMS kernel I would reduce its cache working storage to force the reading of the true data) this is efficient for big batch processes when you know you are after data not often read ( so no chance of finding them in caches), of course, it impacts ordinary online interactive work but as you have fewer requests thrown by online users its acceptable... it should improve a bit your step 4...
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LEARN ABOUT DEBIAN
whichman
WHICHMAN(1) General Commands Manual WHICHMAN(1)
NAME
whichman - show the location of a man page using a fault tolerant approximate matching algorithm
SYNOPSIS
whichman [-#ehIp][-t#] man-page-name
DESCRIPTION
whichman is a "which" alike search command for man pages. whichman searches the MANPATH environment variable. If this variable is not
defined, then it uses /usr/share/man:/usr/man:/usr/X11R6/man: /usr/local/share/man:/usr/local/man by default.
Unlike "which" this program does not stop on the first match. The name should probably have been something like whereman as this is not a
"which" at all. whichman shows all man-pages that match and allows you to identify the different sections to which the pages belong.
whichman can handle international manpage path names for different languages. Man pages in different languages may be stored in
.../man/<country_code>/man[1-9]/...
By default, whichman does fault tolerant approximate string matching. With a default tolerance level of: (strlen(searchpattern) - number of
wildcards)/6 + 1
OPTIONS
-h Prints a little help/usage information.
-I Do case sensitive search (default is case in-sensitive)
-e Use exact matching when searching for a given man-page and the wildcards * and ? are disabled.
-p print the actual tolerance level in front of the man page name.
-# or -t#
Set the fault tolerance level to #. The fault tolerance level is a integer # in the range 0-255. It specifies the maximum number
of errors permitted in finding the approximate match. A tolerance_level of zero allows exact matches only but does NOT disable the
wildcards * and ?.
The search key may contain the wildcards * and ? (but see -e option):
'*' any arbitrary number of character
'?' one character
The last argument to whichman is not parsed for options as the program needs at least one man-page-name argument. This means that whichman
-x will not complain about a wrong option but search for the man-page named -x.
EXAMPLE
whichman print
This will e.g. find the man-pages:
/usr/share/man/man1/printf.1.gz
/usr/share/man/man3/printf.3.gz
/usr/share/man/man3/rint.3.gz
BUGS
The wildcards '?' and '*' can not be escaped. These characters function always as wildcards. This is however not a big problem since there
is hardly any man-page that has these characters in its name.
AUTHOR
Guido Socher (guido@linuxfocus.org)
SEE ALSO
ftff(1), man(1)
Search utilities April 1998 WHICHMAN(1)