5
# This is the quantum of time for preload. Preload performs
6
# data gathering and predictions every cycle. Use an even
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# Note: Setting this parameter too low will may reduce the
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# system performance and stability.
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# default: default_cycle
19
# Whether correlation coefficient should be used in the prediction
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# algorithm. There are arguments both for and against using it.
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# Currently it's believed that using it results in more accurate
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# prediction. The option may be removed in the future.
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# default: default_usecorrelation
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usecorrelation = default_usecorrelation
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# Minimum sum of the length of maps of the process for
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# preload to consider tracking the application.
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# Note: Setting this parameter too high will make preload less
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# effective, while setting it too low will make it eat
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# quadratically more resources, as it tracks more processes.
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# default: default_minsize
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minsize = default_minsize
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# The following control how much memory preload is allowed to use
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# for preloading in each cycle. All values are percentages and are
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# clamped to -100 to 100.
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# The total memory preload uses for prefetching is then computed using
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# the following formulae:
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# max (0, TOTAL * memtotal + FREE * memfree) + CHACED * memcached
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# where TOTAL, FREE, and CACHED are the respective values read at
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# runtime from /proc/meminfo.
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# memtotal: precentage of total memory
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# default: default_memtotal
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memtotal = default_memtotal
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# memfree: precentage of free memory
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# default: default_memfree
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memfree = default_memfree
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# memcached: precentage of cached memory
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# unit: unit_memcached
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# default: default_memcached
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memcached = default_memcached
76
###########################################################################
82
# Whether preload should monitor running processes and update its
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# model state. Normally you do want that, that's all preload is
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# about, but you may temporarily want to turn it off for various
85
# reasons like testing and only make predictions. Note that if
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# scanning is off, predictions are made based on whatever processes
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# have been running when preload started and the list of running
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# processes is not updated at all.
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# default: default_doscan
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doscan = default_doscan
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# Whether preload should make prediction and prefetch anything off
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# the disk. Quite like doscan, you normally want that, that's the
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# other half of what preload is about, but you may temporarily want
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# to turn it off, to only train the model for example. Note that
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# this allows you to turn scan/predict or or off on the fly, by
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# modifying the config file and signalling the daemon.
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# default: default_dopredict
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dopredict = default_dopredict
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# Preload will automatically save the state to disk every
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# autosave period. This is only relevant if doscan is set to true.
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# Note that some janitory work on the model, like removing entries
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# for files that no longer exist happen at state save time. So,
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# turning off autosave completely is not advised.
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# unit: unit_autosave
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# default: default_autosave
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autosave = default_autosave
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# A list of path prefixes that controll which mapped file are to
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# be considered by preload and which not. The list items are
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# separated by semicolons. Matching will be stopped as soon as
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# the first item is matched. For each item, if item appears at
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# the beginning of the path of the file, then a match occurs, and
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# the file is accepted. If on the other hand, the item has a
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# exclamation mark as its first character, then the rest of the
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# item is considered, and if a match happens, the file is rejected.
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# For example a value of !/lib/modules;/ means that every file other
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# than those in /lib/modules should be accepted. In this case, the
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# trailing item can be removed, since if no match occurs, the file is
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# accepted. It's advised to make sure /dev is rejected, since
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# preload doesn't special-handle device files internally.
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# default: (empty list, accept all)
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mapprefix = !/usr/lib/locale;/usr;/lib;/lib64;!/
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# The syntax for this is exactly the same as for mapprefix. The only
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# difference is that this is used to accept or reject binary exectuable
141
# files instead of maps.
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# default: (empty list, accept all)
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exeprefix = !/usr/sbin;/usr;!/
added
removed
src/preload.conf.in
