ruby-dev

けいじゅ＠日本ラショナルソフトウェアです.

In [ruby-dev :7441 ] the message: "[ruby-dev:7441] Re: [PATCH]
tools.rb ", on Jul/27 14:33(JST) WATANABE Hirofumi writes:

>わたなべです.

>:ftools.rbのmoveですが, fromがシンボリックリンクの時, シンボリックリンク
>:先をコピーしちゃうので直したほうがよかろうと思うのです.
>
>いまいちよくわかんないんですけど?
>% touch foo
>% ln -s foo bar
>% ls -l foo bar
>lrwxrwxrwx   1 watanabe sony            3 Jul 27 14:20 bar -> foo
>-rw-r--r--   1 watanabe sony            0 Jul 27 14:19 foo
>% ruby -r ftools -e 'File.mv "bar", "baz"'
>ls -l foo bar baz
>ls: bar: No such file or directory
>lrwxrwxrwx   1 watanabe sony            3 Jul 27 14:20 baz -> foo
>-rw-r--r--   1 watanabe sony            0 Jul 27 14:19 foo

移動先のパーティションが同じなら問題ないんですが, 違うと問題ありますです.

>:  TOO_BIG = 1024 * 1024 * 2 # 2MB
>:
>:となっていますが, 大きすぎるような気がします. 私のマシンだと,
>
>TOO_BIG って名前だし :-)

(^^;;;

>Perl の File::Copy の値をそのまま使ってます.
>
>:  8KB
>:
>:ぐらいが最適でした. 2MBだと正直言って極端に遅くなりますです.
>
>実際は from のサイズが 2MB を越えない限りは 2MB にはならない
>んだけど, 8KB が最適だとそうなのかなあ?
>＃わたしのとこでは 2MB のほうが速いです(20-30%ぐらい).

うーん. そうですか...

>:# マシンのアーキテクチャに左右されるのですかね....
>メモリのサイズかも.

メモリは一応128MB積んでいるんですが...

コピーするファイルのサイズに関係あるのかな... そのときは

cat /usr/bin/* > t

を用いましたので... 76MBありました...


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..............................石塚 圭樹＠日本ラショナルソフトウェア...
----------------------------------->> e-mail: keiju@rational.com <<---

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[#7273] [BUG] regex.c — gotoken@... (GOTO Kentaro)

[#7275] RE: ruby-gtk 0.19 patch for mswin32 — 助田 雅紀 <masaki.suketa@...>

[#7279] Re: ruby-gtk 0.19 patch for mswin32 — 助田 雅紀 <masaki.suketa@...>

[#7284] font-lock in ruby-mode.el — Shugo Maeda <shugo@...>

[#7286] Re: Subscribe confirmation request (ruby developers list) — S-Harada<jdn@...>

[#7291] dualstack-httpd.rb — gotoken@... (GOTO Kentaro)

[#7293] [BUG] Integer#/ — Shugo Maeda <shugo@...>

[#7299] Re: Subscribe confirmation request (ruby developers list) — Satoshi Nojo <nojo@...>

[#7300] resolver を呼ばない UDPsocket#recvfrom — Toshihiko SHIMOKAWA / 下川俊彦 <toshi@...>

[#7301] Re: mod_ruby/0.1.2 with Apache/1.3.6 on Solaris/2.5.1 — matz@... (Yukihiro Matsumoto)

[#7313] Ruby 1.3.5 — Yukihiro Matsumoto <matz@...>

[#7319] Sequence — gotoken@... (GOTO Kentaro)

[#7327] [PATCH] ext/extmk.rb.in, instruby.rb, lib/mkmf.rb — Katsuyuki Komatsu <komatsu@...>

[#7328] [PATCH] unused variable cleanup — Katsuyuki Komatsu <komatsu@...>

[#7334] Re: [ruby-list:15459] Re: chomp で nil が返るのは？ — Koji Arai <JCA02266@...>

[#7339] $libs in ext/extmk.rb.in, lib/mkmf.rb — WATANABE Hirofumi <watanabe@...>

[#7347] AC_OBJEXT — Katsuyuki Komatsu <komatsu@...>

[#7353] const assign — Minero Aoki <aamine@...>

[#7365] [PATCH]suppress warning, ext/tcltklib/tcltklib.c — Ryo HAYASAKA <hayasaka@...21.u-aizu.ac.jp>

[#7387] [PATCH]extconf.rb, tcltklib.c, and rubytest.rb for NetBSD — Ryo HAYASAKA <hayasaka@...21.u-aizu.ac.jp>

[#7414] /(?!.)/ — Wakou Aoyama <wakou@...>

[#7417] [BUG] Dir.glob — Koji Arai <JCA02266@...>

[#7418] jcode.rb — WATANABE Hirofumi <watanabe@...>

[#7419] File#expand_path ignore drive letter on mswin32 — Katsuyuki Komatsu <komatsu@...>

[#7424] system "command > nul" — Katsuyuki Komatsu <komatsu@...>

[#7425] make test on mswin32 — Katsuyuki Komatsu <komatsu@...>

[#7428] [PATCH] tools.rb — WATANABE Hirofumi <watanabe@...>

[#7430] [PATCH] mswin32 support — Katsuyuki Komatsu <komatsu@...>

[#7438] Re: [ruby-list:15672] Re: debugger exception handle (Re: Modified debug.rb) — keiju@... (石塚圭樹)

[#7444] dualstack-*.rb on mswin32 — Katsuyuki Komatsu <komatsu@...>

[#7453] [PATCH] reduce recursive calls to rb_eval() — EGUCHI Osamu <eguchi@...>

[#7458] compile on AIX — matz@... (Yukihiro Matsumoto)

[#7466] [PATCH] for djgpp — WATANABE Hirofumi <watanabe@...>

[#7471] Range#each — WATANABE Hirofumi <watanabe@...>

[#7476] regexp — KIMURA Koichi <kimura@...>

[#7478] constant in class_eval{} — Inaba Hiroto <inaba@...>

[#7480] ENV[] on mswin32 — Katsuyuki Komatsu <komatsu@...>

[#7489] Re: ENV[] on mswin32 — 助田 雅紀 <masaki.suketa@...>

[#7492] Re: ENV[] on mswin32 — 助田 雅紀 <masaki.suketa@...>

[#7495] Re: constant in class_eval{} — Inaba Hiroto <inaba@...>

[#7496] Re: [ruby-list:15743] ruby debugger (like gdb attach) — "NAKAMURA, Hiroshi" <nakahiro@...>

[#7500] mswin32 update — Katsuyuki Komatsu <komatsu@...>

[#7501] [PATCH] mswin32 tcltklib for Tcl/Tk 8.0jp — Katsuyuki Komatsu <komatsu@...>

[#7503] [PATCH] find_library() — Katsuyuki Komatsu <komatsu@...>

[#7508] [BUG?] install failed — Yasuhiro Fukuma <yasuf@...>

[#7510] [patch] for OS/2 — kenn@...

[#7514] RTLD_NOW or RTLD_LAZY (Re: [ruby-list:15779]) — ttate@...

[#7515] Re: ERb について — matz@... (Yukihiro Matsumoto)

[ruby-dev:7442] Re: [PATCH] tools.rb

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[#7275] RE: ruby-gtk 0.19 patch for mswin32 — 助田　雅紀 <masaki.suketa@...>

[#7279] Re: ruby-gtk 0.19 patch for mswin32 — 助田　雅紀 <masaki.suketa@...>

[#7489] Re: ENV[] on mswin32 — 助田　雅紀 <masaki.suketa@...>

[#7492] Re: ENV[] on mswin32 — 助田　雅紀 <masaki.suketa@...>