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Diff for /www/53.html between version 1.58 and 1.59

version 1.58, 2013/03/14 21:05:47

version 1.59, 2013/03/14 21:14:27

Line 216

</ul>

<li>Assorted improvements:

<li>Security improvements:

<ul>

<li>Position-independent executables (PIE) are now used by default on alpha, amd64, hppa, landisk, loongson, sgi and sparc64.

<li><a href="http://www.openbsd.org/cgi-bin/man.cgi?query=gcc&sektion=1">gcc(1)</a> stack smashing protector added for Alpha and MIPS (enabled by default).

<li>Shared libraries on GCC 4 platforms now each get their own stack protector cookies instead of sharing a single global cookie.

</ul>

<li>Performance improvements:

<ul>

<li>Switch default disk I/O sort algorithm to NSCAN for improved fairness and response times.

<li>Softdep speedup improvements by the revert of a previously necessary workaround to prevent kva starvation.

<li>Large performance and reliability improvements in

<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=make&sektion=1">make(1)</a>,

especially in parallel mode. make no longer does any busy waiting, it handles

concurrent targets correctly, and displays more accurate error messages.

<li>Increased stack alignment in constructor functions and new threads on i386 to meet requirements for SSE.

<li>Coredumping no longer hogs CPU or I/O and can be aborted by sending the process a SIGKILL signal.

</ul>

<li>Threading improvements:

<ul>

<li>Threaded programs and libraries can now be linked with the POSIX-standard -lpthread flag instead of the OpenBSD-specific -pthread flag

<li><a href="http://www.openbsd.org/cgi-bin/man.cgi?query=abort&sektion=3">abort(3)</a> and <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=raise&sektion=3">raise(3)</a> now direct the signal to the calling thread, as specified by POSIX.

<li>Whether a thread is currently executing on an alternate signal stack (c.f. <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=sigaltstack&sektion=2">sigaltstack(2)</a>) is now determined dynamically, so the stack can be reused if <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=siglongjmp&sektion=3">siglongjmp(3)</a> is used to exit the signal handler.

<li>libpthread now caches automatically allocated, default size thread stacks.

<li>Improvements in the handling of profiling, tracing, and %cpu calculation of threaded processes.

</ul>

<li>Assorted improvements:

<ul>

<li><a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ldomctl&sektion=8&arch=sparc64">ldomctl(8)</a>

was added to manage logical domains on sun4v systems through

<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ldomd&sektion=8&arch=sparc64">ldomd(8)</a>.

<li>Support for WPA Enterprise was added to the wpa_supplicant package.

<li>OpenBSD/luna88k and OpenBSD/mvme88k have switched to GCC 3, <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=elf&sektion=5">elf(5)</a> and gained shared library support.

<li>OpenBSD/hp300 and OpenBSD/mvme68k have switched to GCC 3 and <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=elf&sektion=5">elf(5)</a>.

<li><a href="http://www.openbsd.org/cgi-bin/man.cgi?query=gcc&sektion=1">gcc(1)</a> stack smashing protector added for Alpha and MIPS (enabled by default).

<li><a href="http://www.openbsd.org/cgi-bin/man.cgi?query=softraid&sektion=4">softraid(4)</a> RAID1 and crypto volumes are now bootable on i386 and amd64 (full disk encryption).

<li>Large performance and reliability improvements in

<a href="http://www.openbsd.org/cgi-bin/man.cgi?query=make&sektion=1">make(1)</a>,

especially in parallel mode. make no longer does any busy waiting, it handles

concurrent targets correctly, and displays more accurate error messages.

emacs-like editor now supports <tt>diff-buffer-with-file</tt>, <tt>make-directory</tt> and <tt>revert-buffer</tt>.

Column numbers have been made configurable and locale is respected for ctype purposes, like displaying ISO Latin 1 characters.

<li>Improved our own <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=pkg-config&sektion=1">pkg-config(1)</a>

implementation to make it compatible with freedesktop.org's 0.27.1 release.

<li>A number of improvements to the buffer cache and page daemon interactions to avoid issues in low memory/low kva situations.

<li>Switch default disk I/O sort algorithm to NSCAN for improved fairness and response times.

<li>Various bug fixes in uvm to avoid potential races and deadlock issues.

<li>Softdep speedup improvements by the revert of a previously necessary workaround to prevent kva starvation.

<li>Memory filesystem (mfs) switched to bufq, giving us queue limits and FIFO queueing (rather than the current LIFO queueing).

<li>Shared libraries on GCC 4 platforms now each get their own stack protector cookies instead of sharing a single global cookie.

<li>Threaded programs and libraries can now be linked with the POSIX-standard -lpthread flag instead of the OpenBSD-specific -pthread flag

<li>Many improvements to the <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=cwm&sektion=1">cwm(1)</a> window manager,

including tab completion and Xft support for menus, improved Xinerama support, and per-group vertical/horizontal manual tiling support.

<li>Added <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=dprintf&sektion=3">dprintf(3)</a>, <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=grantpt&sektion=3">grantpt(3)</a>, <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=posix_openpt&sektion=3">posix_openpt(3)</a>, <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=ptsname&sektion=3">ptsname(3)</a>, <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=unlockpt&sektion=3">unlockpt(3)</a>, and <a href="http://www.openbsd.org/cgi-bin/man.cgi?query=vdprintf&sektion=3">vdprintf(3)</a>.

<li>Corrected the order of invocation of constructor and destruction functions.

<li>Increased stack alignment in constructor functions and new threads on i386 to meet requirements for SSE.

<li>Improved compliance and/or cleanliness of header files, particularly

<dlfcn.h>, <netdb.h>, <net/if.h>,

<netinet/in.h>, <sys/socket.h>, <sys/uio.h>,

and <sys/un.h>.

<li>libpthread now caches automatically allocated, default size thread stacks.

<li>Coredumping no longer hogs CPU or I/O and can be aborted by sending the process a SIGKILL signal.

<li>Improvements in the handling of profiling, tracing, and %cpu calculation of threaded processes.

</ul>