$ /usr/bin/time --verbose python julia1_nopil.py Length of x: 1000 Total elements: 1000000 calculate_z_serial_purepython took 8.477287530899048 seconds Command being timed: "python julia1_nopil.py" User time (seconds): 8.97 System time (seconds): 0.05 Percent of CPU this job got: 99...
一、目录及文件操作命令 1.1 ls 语法: ls [-RadCxmlnogrtucpFbqisf1] [目录或文件……] 说明: ls 命令列出指定目录下的文件,缺省目录为当前目录 ./,缺省输出顺序为纵向按字符顺序排列。 -R 递归地列出每个子目录的内容 -a 列出所有文件,包括第一个字符为“.
A time unit equal to 106years; used in reference to evolutionary processes. McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc. cron (operating system) The Unix clockdaemonthat executes commands at specified dates and times according...
戳在PHP中,如果需要将日期和UNIX
time $1 # command under test vmstat -s >>temp.file # cumulative counts after execution grep "pagi.*ins" temp.file >>results # extract only the data grep "pagi.*outs" temp.file >>results # of interest # vmstat -s 3231543 total address trans. faults ...
[i]); /* once for each command-line arg */ exit(0); } static void do_cmd(char *cmd) /* execute and time the "cmd" */ { struct tms tmsstart, tmsend; clock_t start, end; int status; printf("\ncommand: %s\n", cmd); if ((start = times(&tmsstart)) == -1) /* ...
7. vim command examples Go to the 143rd line of file $ vim +143 filename.txt Go to the first match of the specified $ vim +/search-term filename.txt Open the file in read only mode. $ vim -R /etc/passwd More vim examples: How To Record and Play in Vim Editor...
/* user gid */ __darwin_time_t pw_change; /* password change time */ char *pw_class; /* user access class */ char *pw_gecos; /* Honeywell login info */ char *pw_dir; /* home directory */ char *pw_shell; /* default shell */ __darwin_time_t pw_expire; /* account expir...
$/usr/bin/time--verbosepythonjulia1_nopil.pyLength of x:1000Total elements:1000000calculate_z_serial_purepythontook12.3145110607secondsCommand being timed:"python julia1_nopil.py"User time (seconds):13.46System time (seconds):0.05Percent of CPU this job got:99%Elapsed (wall clock) time (h:mm...
Process time: 也称为CPU时间(CPU time), 表示进程启动时到现在CPU时间的总量。CPU时间可划分为:1.系统CPU时间(system CPU time): 在kernel mode下执行代码所花的时间;2.用户CPU时间(user CPU time): 在user mode下执行代码所花的时间。 time这个命令显示了pipeline中进程执行所花的real time、系统CPU时间和用...