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Correct documentation of check interval - it's 100 by default, not 10 any

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longer.  Pointed out by Alex Martelli.
This commit is contained in:
Skip Montanaro 2003-07-02 21:38:34 +00:00
parent 74902508dc
commit eec26f982a
3 changed files with 4 additions and 4 deletions
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2
Doc/api/init.tex
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@ -348,7 +348,7 @@ Therefore, the rule exists that only the thread that has acquired the
global interpreter lock may operate on Python objects or call Python/C global interpreter lock may operate on Python objects or call Python/C
API functions. In order to support multi-threaded Python programs, API functions. In order to support multi-threaded Python programs,
the interpreter regularly releases and reacquires the lock --- by the interpreter regularly releases and reacquires the lock --- by
default, every ten bytecode instructions (this can be changed with default, every 100 bytecode instructions (this can be changed with
\withsubitem{(in module sys)}{\ttindex{setcheckinterval()}} \withsubitem{(in module sys)}{\ttindex{setcheckinterval()}}
\function{sys.setcheckinterval()}). The lock is also released and \function{sys.setcheckinterval()}). The lock is also released and
reacquired around potentially blocking I/O operations like reading or reacquired around potentially blocking I/O operations like reading or

4
Doc/lib/libsys.tex
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@ -394,8 +394,8 @@ else:
\begin{funcdesc}{setcheckinterval}{interval} \begin{funcdesc}{setcheckinterval}{interval}
Set the interpreter's ``check interval''. This integer value Set the interpreter's ``check interval''. This integer value
determines how often the interpreter checks for periodic things such determines how often the interpreter checks for periodic things such
as thread switches and signal handlers. The default is \code{10}, as thread switches and signal handlers. The default is \code{100},
meaning the check is performed every 10 Python virtual instructions. meaning the check is performed every 100 Python virtual instructions.
Setting it to a larger value may increase performance for programs Setting it to a larger value may increase performance for programs
using threads. Setting it to a value \code{<=} 0 checks every using threads. Setting it to a value \code{<=} 0 checks every
virtual instruction, maximizing responsiveness as well as overhead. virtual instruction, maximizing responsiveness as well as overhead.

2
Misc/cheatsheet
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@ -1361,7 +1361,7 @@ getrefcount(object Returns the reference count of the object. Generally one
) higher than you might expect, because of object arg temp ) higher than you might expect, because of object arg temp
reference. reference.
setcheckinterval( Sets the interpreter's thread switching interval (in number setcheckinterval( Sets the interpreter's thread switching interval (in number
interval) of virtual code instructions, default:10). interval) of virtual code instructions, default:100).
settrace(func) Sets a trace function: called before each line ofcode is settrace(func) Sets a trace function: called before each line ofcode is
exited. exited.
setprofile(func) Sets a profile function for performance profiling. setprofile(func) Sets a profile function for performance profiling.