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From: Tomas Pospisek <[EMAIL PROTECTED]>
To: Debian Bug Tracking System <[EMAIL PROTECTED]>
Subject: cp: would be nice if copy did buffering
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Date: Fri, 07 Jun 2002 09:23:31 +0200
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Package: fileutils
Version: 4.1-10
Severity: wishlist
I sit here and am copying files from a disk on one ide bus over to
a disk on another ide bus. The drives' light are being lit sequentially
though. Which means that first drive A reads than drive B writes etc.
It'd be nice if cp could buffer it's input to match the speeds of the
two drives and so do reading and writing in parallel.
*t
-- System Information
Debian Release: 3.0
Architecture: i386
Kernel: Linux tpo2 2.4.16 #2 Fri Jan 4 18:17:17 CET 2002 i686
Locale: LANG=C, LC_CTYPE=C
Versions of packages fileutils depends on:
ii libc6 2.2.5-6 GNU C Library: Shared libraries an
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Date: Sat, 24 Dec 2005 23:35:59 +0100
From: Thomas Hood <[EMAIL PROTECTED]>
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Subject: Not a bug
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cp just reads data and writes it, using OS functions. The OS buffers
the data and is responsible for performing disk accesses efficiently.
If you are not seeing simultaneous reads and writes then this is
probably a hardware limitation of your system. E.g., perhaps both
disks are on the same IDE controller.
--
Thomas Hood
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