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41834bb21b
This is retry of #1419. I added flush_fscache macro to flush cached stats after disk writing with tests for regression reported in #1438 and #1442. git checkout checks each file path in sorted order, so cache flushing does not make performance worse unless we have large number of modified files in a directory containing many files. Using chromium repository, I tested `git checkout .` performance when I delete 10 files in different directories. With this patch: TotalSeconds: 4.307272 TotalSeconds: 4.4863595 TotalSeconds: 4.2975562 Avg: 4.36372923333333 Without this patch: TotalSeconds: 20.9705431 TotalSeconds: 22.4867685 TotalSeconds: 18.8968292 Avg: 20.7847136 I confirmed this patch passed all tests in t/ with core_fscache=1. Signed-off-by: Takuto Ikuta <tikuta@chromium.org>
17 lines
383 B
C
17 lines
383 B
C
#ifndef FSCACHE_H
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#define FSCACHE_H
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int fscache_enable(int enable);
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#define enable_fscache(x) fscache_enable(x)
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int fscache_enabled(const char *path);
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#define is_fscache_enabled(path) fscache_enabled(path)
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void fscache_flush(void);
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#define flush_fscache() fscache_flush()
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DIR *fscache_opendir(const char *dir);
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int fscache_lstat(const char *file_name, struct stat *buf);
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#endif
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