#!/usr/bin/stap global traced_pid, command global allocation, free global file_fault, file_cow, file_uunmap, file_kunmap function log_event:long () { return (!traced_pid || traced_pid == pid()) } probe kernel.trace("mm_page_allocation") { if (!log_event()) next allocation[pid()] <<< 1 command[pid()] = execname() } probe kernel.trace("mm_page_free") { if (!log_event()) next free[pid()] <<< 1 } probe kernel.trace("mm_filemap_fault") { if (!log_event()) next file_fault[pid()] <<< 1 } probe kernel.trace("mm_filemap_cow") { if (!log_event()) next file_cow[pid()] <<< 1 } probe kernel.trace("mm_filemap_unmap") { if (!log_event()) next file_kunmap[pid()] <<< 1 } probe kernel.trace("mm_filemap_userunmap") { if (!log_event()) next file_uunmap[pid()] <<< 1 } probe begin { printf("Starting data collection\n") traced_pid = target() if (traced_pid) printf("mode Specific Pid, traced pid: %d\n\n", traced_pid) else printf("mode - All Pids\n\n") } probe end { printf("Terminating data collection\n") printf("%-16s %6s %9s %9s %8s %8s %8s %8s\n", "Command", "Pid", "Alloc", "Free", "F_fault", "F_cow", "F_kunmap", "F_uunmap") printf("%-16s %6s %9s %9s %8s %8s %8s %8s\n", "-------", "---", "-----", "----", "-------", "-----", "--------", "--------") foreach (pid in allocation-) printf("%-16s %6d %9d %9d %8d %8d %8d %8d\n", command[pid], pid, @count(allocation[pid]), @count(free[pid]), @count(file_fault[pid]), @count(file_cow[pid]), @count(file_kunmap[pid]), @count(file_uunmap[pid])) }