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authorArun Isaac2017-02-28 00:29:16 +0530
committerArun Isaac2017-02-28 00:29:16 +0530
commit8f14822fe401d4cdbdbce52aeeb8ad849350c493 (patch)
tree6d1cadb87b212465037dde09da335f4bfc45e52f
parente7d8e5f3c9622e815ac300854ec851d22bf76723 (diff)
downloadexiftool.el-8f14822fe401d4cdbdbce52aeeb8ad849350c493.tar.gz
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Improve commentary.
* el-exiftool.el: Comment on the ExifTool -stay_open process.
-rw-r--r--el-exiftool.el6
1 files changed, 6 insertions, 0 deletions
diff --git a/el-exiftool.el b/el-exiftool.el
index 284064f..3bc6768 100644
--- a/el-exiftool.el
+++ b/el-exiftool.el
@@ -27,6 +27,12 @@
;; el-exiftool is an elisp wrapper around ExifTool. ExifTool supports
;; reading and writing metadata in various formats including EXIF, XMP
;; and IPTC.
+;;
+;; There is a significant overhead in loading ExifTool for every
+;; command to be exected. So, el-exiftool starts an ExifTool process
+;; in the -stay_open mode, and passes all commands to it. For more
+;; about ExifTool's -stay_open mode, see
+;; http://www.sno.phy.queensu.ca/~phil/exiftool/#performance
;;; Code: