2ch特化型サーバ・ロケーション構築作戦 Part19
ぼちぼち、リリースノートを読み始め。
以下はamd64のリリースノートから、カーネル系。
・HZのデフォルト値が変わった。割り込み系とか時間の粒度とか、よりよくなるかも。
The default HZ parameter (which controls various kernel timers) has been increased
from 100 to 1000 on the i386 and ia64. It has been reduced from 1024 to 1000
on the amd64 to reduce synchronization effects with other system clocks.
・panic/強制リブート時の立ち直りを早くする工夫。
Recomputing the summary information for “dirty” UFS and UFS2 file systems is
no longer done at mount time, but is now done by background fsck(8). This change
improves the startup speed when mounting large file systems after a crash.
The prior behavior can be restored by setting the vfs.ffs.compute_summary_at_mount
sysctl variable to a non-zero value. [MERGED]
・NFSサーバの虫がとれたらしい。
A kernel panic in the NFS server has been fixed. More details can be found in errata
note FreeBSD-EN-05:01.nfs. [MERGED]
以下はamd64のリリースノートから、カーネル系。
・HZのデフォルト値が変わった。割り込み系とか時間の粒度とか、よりよくなるかも。
The default HZ parameter (which controls various kernel timers) has been increased
from 100 to 1000 on the i386 and ia64. It has been reduced from 1024 to 1000
on the amd64 to reduce synchronization effects with other system clocks.
・panic/強制リブート時の立ち直りを早くする工夫。
Recomputing the summary information for “dirty” UFS and UFS2 file systems is
no longer done at mount time, but is now done by background fsck(8). This change
improves the startup speed when mounting large file systems after a crash.
The prior behavior can be restored by setting the vfs.ffs.compute_summary_at_mount
sysctl variable to a non-zero value. [MERGED]
・NFSサーバの虫がとれたらしい。
A kernel panic in the NFS server has been fixed. More details can be found in errata
note FreeBSD-EN-05:01.nfs. [MERGED]
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ユーザランド系。
・このへんを高速化しているそうで。
Machine-specific optimized versions of bcmp(3), bcopy(3), bzero(3), memcmp(3), memcpy(3),
memmove(3), memset(3), strcat(3) and strcpy(3) have been implemented.
Several mathematics functions such as ceill(3) and sqrtf(3) are also replaced with
the optimized versions.
・pgrep/pkill 大幅強化。
The pgrep(1) command now supports a -S option which allows matching
system processes (kernel threads).
The pgrep(1) and pkill(1) commands now support a -F option, which matches
a process whose PID is stored in a file.
The pgrep(1) and pkill(1) commands now support a -i option to ignore case
in the process match.
The pgrep(1) and pkill(1) commands now support a -j option that matches processes
based on their jail(2) ID.
The pgrep(1) and pkill(1) commands now support a -o option which matches only
the oldest (least recently started) of the matching processes.
・portssnapコマンド新設。
The portsnap(8) utility for downloading, updating, and extracting compressed snapshots
of the FreeBSD ports tree has been added.
・tail -fが複数のファイルを処理できるようになった。
The -f option of tail(1) utility now supports more than one file at a time. [MERGED]
・tcpdropコマンドがOpenBSDから輸入された。
The tcpdrop(8) command, which closes a selected TCP connection, has been added.
It was obtained from OpenBSD. [MERGED]
・このへんを高速化しているそうで。
Machine-specific optimized versions of bcmp(3), bcopy(3), bzero(3), memcmp(3), memcpy(3),
memmove(3), memset(3), strcat(3) and strcpy(3) have been implemented.
Several mathematics functions such as ceill(3) and sqrtf(3) are also replaced with
the optimized versions.
・pgrep/pkill 大幅強化。
The pgrep(1) command now supports a -S option which allows matching
system processes (kernel threads).
The pgrep(1) and pkill(1) commands now support a -F option, which matches
a process whose PID is stored in a file.
The pgrep(1) and pkill(1) commands now support a -i option to ignore case
in the process match.
The pgrep(1) and pkill(1) commands now support a -j option that matches processes
based on their jail(2) ID.
The pgrep(1) and pkill(1) commands now support a -o option which matches only
the oldest (least recently started) of the matching processes.
・portssnapコマンド新設。
The portsnap(8) utility for downloading, updating, and extracting compressed snapshots
of the FreeBSD ports tree has been added.
・tail -fが複数のファイルを処理できるようになった。
The -f option of tail(1) utility now supports more than one file at a time. [MERGED]
・tcpdropコマンドがOpenBSDから輸入された。
The tcpdrop(8) command, which closes a selected TCP connection, has been added.
It was obtained from OpenBSD. [MERGED]
ざっと読んでみて、サーバ系でめぼしいところは、このぐらいか。
無線LANサポートとか、LapTopサポートがかなり入ったとか、
CPUクロックの制御まわりがいろいろ入ったとか、
DHCP関係がISCのものからOpenBSDのものに変わったとか、
そのへんもあるですね。
こまごまとしたところが、良くなったり変わったりしている様子。
で、
Source upgrades to FreeBSD 6.0-RELEASE are only supported from
FreeBSD 5.3-RELEASE or later. Users of older systems wanting to
upgrade 6.0-RELEASE will need to update to FreeBSD 5.3 or newer first,
then to FreeBSD 6.0-RELEASE.
とあるように、従来のバージョンからアップグレードする時は、
いったん5.3R以降に更新してから、6.0Rにするようにと。
無線LANサポートとか、LapTopサポートがかなり入ったとか、
CPUクロックの制御まわりがいろいろ入ったとか、
DHCP関係がISCのものからOpenBSDのものに変わったとか、
そのへんもあるですね。
こまごまとしたところが、良くなったり変わったりしている様子。
で、
Source upgrades to FreeBSD 6.0-RELEASE are only supported from
FreeBSD 5.3-RELEASE or later. Users of older systems wanting to
upgrade 6.0-RELEASE will need to update to FreeBSD 5.3 or newer first,
then to FreeBSD 6.0-RELEASE.
とあるように、従来のバージョンからアップグレードする時は、
いったん5.3R以降に更新してから、6.0Rにするようにと。