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<HTML><HEAD><TITLE>Data Test Program (dt) April 2nd, 2000</TITLE></HEAD><BODY BGCOLOR="#D19275"><CENTER><H2><STRONG>What's New as of April 2nd, 2000</STRONG></H2></CENTER><H2>Changes For This Release</H2>The following changes have been made to <I>dt</I> Version 13.10:<UL><P><B>13.6 -> 13.7</B><P><LI>In HandleMultiVolume(), reset the exit status to SUCCESS, sincethis got set to END_OF_FILE earlier. Failure to do this meant weexited with an END_OF_FILE (254) status on the read pass insteadof SUCCESS (0).<P><B>13.7 -> 13.8</B><P><LI>Fixed parsing of flags=direct for Tru64 Clusters.<LI>Don't permit passes=0, as this caused segmentation fault.<LI>Don't create unique file names with procs= to named FIFO.<P><B>13.8 -> 13.9</B><P><LI>Added "capacity=value" option, and ignore read errors inFindCapacity() called for iotype=random option.<LI>Fixed problem with "position=value" truncating file positionto 32 bits, since the file offset may be a 64-bit entity (off_t).<LI>Improved file position functions to provide better debug output.Also, only scale the random position upwards by the device sizeevery other record, so low blocks gets utilized more often.Note: These changes degrade random I/O performance slightly.[ for "best" performance, all debug really needs omitted, butcurrently there's no way to permit this (future consideration). ]<LI>Fixed exit status when "runtime=" option used. This exit pathonly looked at error_count to set FAILURE exit status, whilenon-runtime exit path looked at exit_status variable.<P>Note: The ignoring of read error in FindCapacity(), was addedfor reading ATAPI CD's on Linux, since this driver does *not*properly handle seek/reads past the end of media. The last goodread gets used when the read error occurs. Use "capacity=value"to avoid this error condition. [ occurs on RedHat Linux V6.1 ]<P><B>13.9 -> 13.10</B><P><LI>Minor change for QNX operating system. Stat'ing block devicesreturns the number of blocks in st_size field, which needed scaledby the block size (512 bytes), before setting the random data limitand disk capacity. This only affected random I/O tests.</UL><P><CENTER>Within Compaq, the updated <I>dt</I> kits are located @ URL:</CENTER><P><CENTER><A HREF="http://www.zk3.dec.com/~rmiller/dt.html">http://www.zk3.dec.com/~rmiller/dt.html</A></CENTER><P><CENTER>External to Compaq, you can obtain <I>dt</I> kits from URL:</CENTER><P><CENTER><A HREF="http://www.bit-net.com/~rmiller/dt.html">http://www.bit-net.com/~rmiller/dt.html</A></CENTER></UL><HR><A HREF="mailto:Robin.Miller@compaq.com"><IMG SRC="../gifs/mailbox.gif" ALT="Mail"></A>Send mail to admin of this page: <EM>Robin.Miller@compaq.com</EM> <A HREF="../index.html"><IMG SRC="../gifs/home04.gif" ALT="Home"></A>To Robin's home page.<P>Last modified: April 3rd, 2000<HR>⌨️ 快捷键说明
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