oneliners.txt   [plain text]

#
#   DTrace OneLiners
#

DTrace One Liners,

# New processes with arguments,
dtrace -n 'proc:::exec-success { trace(curpsinfo->pr_psargs); }'
 
# Files opened by process name,
dtrace -n 'syscall::open*:entry { printf("%s %s",execname,copyinstr(arg0)); }'

# Files created using creat() by process name,
dtrace -n 'syscall::creat*:entry { printf("%s %s",execname,copyinstr(arg0)); }'
 
# Syscall count by process name,
dtrace -n 'syscall:::entry { @num[execname] = count(); }'
 
# Syscall count by syscall,
dtrace -n 'syscall:::entry { @num[probefunc] = count(); }'
 
# Syscall count by process ID,
dtrace -n 'syscall:::entry { @num[pid,execname] = count(); }'

# Read bytes by process name,
dtrace -n 'sysinfo:::readch { @bytes[execname] = sum(arg0); }'
 
# Write bytes by process name,
dtrace -n 'sysinfo:::writech { @bytes[execname] = sum(arg0); }'
 
# Read size distribution by process name,
dtrace -n 'sysinfo:::readch { @dist[execname] = quantize(arg0); }'
 
# Write size distribution by process name,
dtrace -n 'sysinfo:::writech { @dist[execname] = quantize(arg0); }'
 
# Disk size by process ID,
dtrace -n 'io:::start { printf("%d %s %d",pid,execname,args[0]->b_bcount); }'

# Disk size aggregation
dtrace -n 'io:::start { @size[execname] = quantize(args[0]->b_bcount); }'

# Pages paged in by process name,
dtrace -n 'vminfo:::pgpgin { @pg[execname] = sum(arg0); }'
 
# Minor faults by process name,
dtrace -n 'vminfo:::as_fault { @mem[execname] = sum(arg0); }'
 
# Interrupts by CPU,
dtrace -n 'sdt:::interrupt-start { @num[cpu] = count(); }'

# CPU cross calls by process name,
dtrace -n 'sysinfo:::xcalls { @num[execname] = count(); }'
 
# Lock time by process name,
dtrace -n 'lockstat:::adaptive-block { @time[execname] = sum(arg1); }'
 
# Lock distribution by process name,
dtrace -n 'lockstat:::adaptive-block { @time[execname] = quantize(arg1); }'

# Kernel funtion calls by module
dtrace -n 'fbt:::entry { @calls[probemod] = count(); }'

# Stack size for processes
dtrace -n 'sched:::on-cpu { @[execname] = max(curthread->t_procp->p_stksize);}'

# Kill all top processes when they are invoked,
dtrace -wn 'syscall::exece:return /execname == "top"/ { raise(9); }'



DTrace Longer One Liners,

# New processes with arguments and time,
dtrace -qn 'syscall::exec*:return { printf("%Y %s\n",walltimestamp,curpsinfo->pr_psargs); }'
 
# Successful signal details,
dtrace -n 'proc:::signal-send /pid/ { printf("%s -%d %d",execname,args[2],args[1]->pr_pid); }'