Linux下多线程查看工具(pstree、ps、pstack)(linux查看多线程)

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1. pstree

pstree以树结构显示进程$ pstree -p work | grep adsshd()---bash()---ad_preprocess()-&#;-{ad_preprocess}() |-{ad_preprocess}() |-{ad_preprocess}() |-{ad_preprocess}() |-{ad_preprocess}() `-{ad_preprocess}()

work为工作用户，-p为显示进程识别码，ad_preprocess共启动了6个子线程，加上主线程共7个线程

2. ps -Lf

$ ps -Lf UID PID PPID LWP C NLWP STIME TTY STAT TIME CMDwork 2 7 : pts/2 Sl&#; 0: ./ad_preprocesswork 0 7 : pts/2 Sl&#; 0: ./ad_preprocesswork 0 7 : pts/2 Sl&#; 0: ./ad_preprocesswork 0 7 : pts/2 Sl&#; 0: ./ad_preprocesswork 0 7 : pts/2 Sl&#; 0: ./ad_preprocesswork 0 7 : pts/2 Sl&#; 0: ./ad_preprocesswork 0 7 : pts/2 Sl&#; 0: ./ad_preprocess

进程共启动了7个线程

3. pstack

pstack显示每个进程的栈跟踪

$ pstack Thread 7 (Thread (LWP )):#0 0xafcdc in epoll_wait () from /lib/tls/libc.so.6#1 0xf in ub::EPollEx::poll ()#2 0xfa in ub::NetReactor::callback ()#3 0xfbbbb in ub::UBTask::CALLBACK ()#4 0xba in start_thread () from /lib/tls/libpthread.so.0#5 0xafc in clone () from /lib/tls/libc.so.6#6 0x in ?? ()Thread 6 (Thread (LWP )):#0 0xafcdc in epoll_wait () from /lib/tls/libc.so.6#1 0xf in ub::EPollEx::poll ()#2 0xfa in ub::NetReactor::callback ()#3 0xfbbbb in ub::UBTask::CALLBACK ()#4 0xba in start_thread () from /lib/tls/libpthread.so.0#5 0xafc in clone () from /lib/tls/libc.so.6#6 0x in ?? ()Thread 5 (Thread (LWP )):#0 0xbbaa5 in __nanosleep_nocancel ()#1 0xe in comcm::ms_sleep ()#2 0xc in ub::UbClientManager::healthyCheck ()#3 0xc in ub::UbClientManager::start_healthy_check ()#4 0xba in start_thread () from /lib/tls/libpthread.so.0#5 0xafc in clone () from /lib/tls/libc.so.6#6 0x in ?? ()Thread 4 (Thread (LWP )):#0 0xbbaa5 in __nanosleep_nocancel ()#1 0xb0e in armor::armor_check_thread ()#2 0xba in start_thread () from /lib/tls/libpthread.so.0#3 0xafc in clone () from /lib/tls/libc.so.6#4 0x in ?? ()Thread 3 (Thread (LWP )):#0 0xaf8f1a5 in __nanosleep_nocancel () from /lib/tls/libc.so.6#1 0xaf8f in sleep () from /lib/tls/libc.so.6#2 0xc in Business_config_manager::run ()#3 0xb in Thread::run_thread ()#4 0xba in start_thread () from /lib/tls/libpthread.so.0#5 0xafc in clone () from /lib/tls/libc.so.6#6 0x in ?? ()Thread 2 (Thread (LWP )):#0 0xaf8f1a5 in __nanosleep_nocancel () from /lib/tls/libc.so.6#1 0xaf8f in sleep () from /lib/tls/libc.so.6#2 0xbb in Process_thread::sleep_period ()#3 0x in Process_thread::run ()#4 0xb in Thread::run_thread ()#5 0xba in start_thread () from /lib/tls/libpthread.so.0#6 0xafc in clone () from /lib/tls/libc.so.6#7 0x in ?? ()Thread 1 (Thread (LWP )):#0 0xaf8f1a5 in __nanosleep_nocancel () from /lib/tls/libc.so.6#1 0xaf8f in sleep () from /lib/tls/libc.so.6#2 0xd in Ad_preprocess::run ()#3 0xad0 in main ()

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