LINUX 测试磁盘IOPS性能

execve("/usr/bin/gimp", ["gimp"], [/* 99 vars */]) = 0 brk(0) = 0x8360000 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7efc000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/user/folk/clint/lib/tls/i686/sse2/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/user/folk/clint/lib/tls/i686/sse2", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/user/folk/clint/lib/tls/i686/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/user/folk/clint/lib/tls/i686", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/user/folk/clint/lib/tls/sse2/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/user/folk/clint/lib/tls/sse2", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/user/folk/clint/lib/tls/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/user/folk/clint/lib/tls", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/user/folk/clint/lib/i686/sse2/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/user/folk/clint/lib/i686/sse2", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/user/folk/clint/lib/i686/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/user/folk/clint/lib/i686", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/user/folk/clint/lib/sse2/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/user/folk/clint/lib/sse2", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/user/folk/clint/lib/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/user/folk/clint/lib", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 open("/opt/kde3/lib/tls/i686/sse2/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/opt/kde3/lib/tls/i686/sse2", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/opt/kde3/lib/tls/i686/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/opt/kde3/lib/tls/i686", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/opt/kde3/lib/tls/sse2/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/opt/kde3/lib/tls/sse2", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/opt/kde3/lib/tls/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/opt/kde3/lib/tls", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/opt/kde3/lib/i686/sse2/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/opt/kde3/lib/i686/sse2", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/opt/kde3/lib/i686/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/opt/kde3/lib/i686", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/opt/kde3/lib/sse2/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/opt/kde3/lib/sse2", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/opt/kde3/lib/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/opt/kde3/lib", {st_mode=S_IFDIR|0755, st_size=28672, ...}) = 0 open("/opt/gnome/lib/tls/i686/sse2/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/opt/gnome/lib/tls/i686/sse2", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/opt/gnome/lib/tls/i686/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/opt/gnome/lib/tls/i686", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/opt/gnome/lib/tls/sse2/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/opt/gnome/lib/tls/sse2", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/opt/gnome/lib/tls/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/opt/gnome/lib/tls", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/opt/gnome/lib/i686/sse2/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/opt/gnome/lib/i686/sse2", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/opt/gnome/lib/i686/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/opt/gnome/lib/i686", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/opt/gnome/lib/sse2/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/opt/gnome/lib/sse2", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/opt/gnome/lib/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/opt/gnome/lib", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/usr/lib/tls/i686/sse2/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/tls/i686/sse2", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/usr/lib/tls/i686/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/tls/i686", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/usr/lib/tls/sse2/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/tls/sse2", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/usr/lib/tls/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/tls", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/usr/lib/i686/sse2/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/i686/sse2", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/usr/lib/i686/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/i686", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/usr/lib/sse2/libgimpwidgets-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/sse2", 0xbfcdba08) = -1 ENOENT (No such file or directory) open("/usr/lib/libgimpwidgets-2.0.so.0", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0 \363\0\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=913924, ...}) = 0 mmap2(NULL, 915836, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7e1c000 fadvise64(3, 0, 915836, POSIX_FADV_WILLNEED) = 0 mmap2(0xb7ef8000, 16384, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xdb) = 0xb7ef8000 close(3) = 0 open("/user/folk/clint/lib/libgimpmodule-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) open("/opt/kde3/lib/libgimpmodule-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) open("/usr/lib/libgimpmodule-2.0.so.0", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\260\22\0\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=18108, ...}) = 0 mmap2(NULL, 16628, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7e17000 fadvise64(3, 0, 16628, POSIX_FADV_WILLNEED) = 0 mmap2(0xb7e1a000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3) = 0xb7e1a000 close(3) = 0 open("/user/folk/clint/lib/libgimpcolor-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) open("/opt/kde3/lib/libgimpcolor-2.0.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) open("/usr/lib/libgimpcolor-2.0.so.0", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\20\32\0\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=38660, ...}) = 0 mmap2(NULL, 36996, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7e0d000 fadvise64(3, 0, 36996, POSIX_FADV_WILLNEED) = 0 mmap2(0xb7e15000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x8) = 0xb7e15000 close(3) = 0 open("/user/folk/clint/l