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# DTrace OneLiners

#

DTrace One Liners,

# New processes with arguments,

dtrace -n 'proc:::exec-success { trace(curpsinfo->pr_psargs); }'

# Files opened/created by process name,

dtrace -n 'syscall::openat*:entry { printf("%s %s",execname,copyinstr(arg1)); }'

# 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::exece: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); }'