Dive Into Python-Chapter 18 Performance Tuning
Dive Into Python-Chapter 18. Performance Tuning
... readability and maintainability. 18. 7. Summary This chapter has illustrated several important aspects of performance tuning in Python, and performance tuning in general. * If you need ... (not source) and (not source.isalpha()): return "0000" Chapter 18. Performance Tuning Performance tuning is a many-splendored thing. Just because Python is an interpreted language ... slower than soundex4a.py in the trivial case (of a very short name). Performance optimizations aren't always uniform; tuning that makes one case faster can sometimes make other cases slower....
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Dive Into Python-Chapter 12. SOAP Web Services
... function also got translated into XML. SOAPProxy introspects each argument to determine its datatype (in this case it's a string). The argument datatype goes into the xsi:type attribute, ... and route requests between several unrelated services. It's like dividing Python modules into packages. 3 You're creating the SOAPProxy with the service URL and the service namespace. ... Introducing WSDL The SOAPProxy class proxies local method calls and transparently turns then into invocations of remote SOAP methods. As you've seen, this is a lot of work, and SOAPProxy...
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OCP: Oracle8i DBA Performance Tuning and Network Administration Study Guide
... CAwww.sybex.comGraphical Performance Tuning Tools 47 Performance Manager, Top Sessions, and Trace Manager are particularly useful for performance tuning. Performance Manager Performance Manager is a GUI performance ... CAwww.sybex.com48 Chapter 2Sources of Tuning InformationFIGURE 2.4 Performance Manager output One unique feature of Performance Manager is that the performance data can be recorded for several ... database per-formance tuning issues. Table 2.8 shows the components of the Tuning Pack.Oracle Expert and Tablespace Manager are particularly useful for data-base-level performance tuning. Tablespace...
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OCP Performance Tuning P2
... Enterprise DBA Part 2: Performance Tuning Workshop Lesson 17: WorkshopPending Performance Tuning IssuesConfigurationsSome of the available configurations can offer better performance results:• ... options for enhancing performance. 17-24 Enterprise DBA Part 2: Performance Tuning Workshop Lesson 17: Workshop APractices A-2 Enterprise DBA Part 2: Performance Tuning Workshop Appendix ... 30052GC10Production 1.0September 1999M09214Enterprise DBA Part 2: Performance and Tuning Volume 2 • Student Guide x Enterprise DBA Part 2: Performance Tuning Workshop ContentsCreating Stored Outlines...
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Dive Into Python-Chapter 13. Unit Testing
... Chapter 13. Unit Testing 13.1. Introduction to Roman numerals In previous chapters, you “dived in” by immediately looking at code and trying to understand it as quickly as possible. Now ... Study: Roman Numerals”, but now let's step back and consider what it would take to expand that into a two-way utility. The rules for Roman numerals lead to a number of interesting observations: ... 'MCDLXXXV'), (1509, 'MDIX'), (1607, 'MDCVII'), (1754, 'MDCCLIV'), (183 2, 'MDCCCXXXII'), (1993, 'MCMXCIII'), (2074, 'MMLXXIV'), ...
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Dive Into Python-Chapter 14. Test-First Programming
... (4), or an optional V followed by 0 to 3 optional I characters. 2 Having encoded all that logic into a regular expression, the code to check for invalid Roman numerals becomes trivial. If re.search...
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Dive Into Python-Chapter 15. Refactoring
... improved the regular expression performance by over 60%, and improved the overall performance of the entire unit test by over 10%. 2 More important than any performance boost is the fact that ... fillLookupTables() So how fast is it? Example 15 .18. Output of romantest9.py against roman9.py Ran 13 tests in 0.791s OK Remember, the best performance you ever got in the original version ... clever reader read the previous section and took it to the next level. The biggest headache (and performance drain) in the program as it is currently written is the regular expression, which is...
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Dive Into Python-Chapter 16. Functional Programming
... /home/you/diveintopython/common/py/fullpath.py 1 sys.argv[0] = /home/you/diveintopython/common/py/fullpath.py path = /home/you/diveintopython/common/py full path = /home/you/diveintopython/common/py ... [you@localhost diveintopython]$ python common/py/fullpath.py 2 sys.argv[0] = common/py/fullpath.py path = common/py full path = /home/you/diveintopython/common/py [you@localhost diveintopython]$ ... [you@localhost py]$ python fullpath.py 3 sys.argv[0] = fullpath.py path = full path = /home/you/diveintopython/common/py 1 In the first case, sys.argv[0] includes the full path of the script....
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Dive Into Python-Chapter 17. Dynamic functions
... 'vacancies' 1 This regular expression turns vacancy into vacancies and agency into agencies, which is what you wanted. Note that it would also turn boy into boies, but that will never happen in the ... and quickly descends into more advanced uses. English is a schizophrenic language that borrows from a lot of other languages, and the rules for making singular nouns into plural nouns are ... re.sub to actually apply the rule to turn a noun into its plural. 2 This line is magic. It takes the list of strings in patterns and turns them into a list of functions. How? By mapping the strings...
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Dive Into Python-Chapter 1. Installing Python
... Chapter 1. Installing Python Welcome to Python. Let's dive in. In this chapter, you'll install the version of Python that's right for you. ... that scripts are running under the latest version of Python, and be sure to type python2.3 to get into the interactive shell. 1.6. Python on Debian GNU/Linux If you are lucky enough to be running ... calculator! Launch the Python interactive shell in whatever way works on your platform, and let's dive in with the steps shown here: Example 1.5. First Steps in the Interactive Shell >>>...
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