Andrew Gaul created THRIFT-1815:
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Summary: Code generators line buffer output
Key: THRIFT-1815
URL: https://issues.apache.org/jira/browse/THRIFT-1815
Project: Thrift
Issue Type: Bug
Components: Compiler (General)
Affects Versions: 0.9
Reporter: Andrew Gaul
This results in slow performance on FUSE- and network-based filesystems, e.g.,
eCryptfs. std::ostream << std::endl emits a newline and flushes buffers to the
kernel[1], yielding excessive system calls. Instead, emit "\n" which does the
equivalent without the flush[2]. The attached patch accomplishes this while
minimizing code churn by removing "using namespace std" and introducing a
static variable endl.
[1] http://www.cplusplus.com/reference/ios/endl/
[2]
http://stackoverflow.com/questions/5492380/what-is-the-c-iostream-endl-fiasco
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