tcmalloc导致程序无法启动-快上网网站建设公司

tcmalloc导致程序无法启动

启用tcmalloc编译后，在测试机上调试启动运行都没有问题，但是上了线上服务器后就无法启动，CPU占用还非常高，pstack看了下，死锁了，线程全部卡在spinlock下面，又折回去发现在我开发机上就不会走到SpinLock::SlowLock这个函数，没辙，老老实实自己折腾个内存池吧

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Thread 5 (Thread 0x7f848c753700 (LWP 4197)):

#0 0x00007f8489a78fd0 in base::internal::SpinLockDelay(int volatile*, int, int) () from /usr/local/lib/libtcmalloc.so.4

#1 0x00007f8489a78dbc in SpinLock::SlowLock() () from /usr/local/lib/libtcmalloc.so.4

#2 0x00007f8489a69065 in tcmalloc::CentralFreeList::Populate() () from /usr/local/lib/libtcmalloc.so.4

#3 0x00007f8489a692a0 in tcmalloc::CentralFreeList::FetchFromOneSpansSafe(int, void**, void**) () from /usr/local/lib/libtcmalloc.so.4

#4 0x00007f8489a69343 in tcmalloc::CentralFreeList::RemoveRange(void**, void**, int) () from /usr/local/lib/libtcmalloc.so.4

#5 0x00007f8489a6d3e5 in tcmalloc::ThreadCache::FetchFromCentralCache(unsigned long, unsigned long) () from /usr/local/lib/libtcmalloc.so.4

#6 0x00007f8489a5c193 in (anonymous namespace)::cpp_alloc(unsigned long, bool) () from /usr/local/lib/libtcmalloc.so.4

#7 0x00007f8489a7bc98 in tc_new () from /usr/local/lib/libtcmalloc.so.4

#8 0x0000003f5309c3c9 in std::basic_string, std::allocator >::_Rep::_S_create(unsigned long, unsigned long, std::allocator const&) () from /usr/lib64/libstdc++.so.6

#9 0x0000003f5309ddaa in std::basic_string, std::allocator >::_M_mutate(unsigned long, unsigned long, unsigned long) () from /usr/lib64/libstdc++.so.6

#10 0x0000003f5309df6c in std::basic_string, std::allocator >::_M_replace_safe(unsigned long, unsigned long, char const*, unsigned long) () from /usr/lib64/libstdc++.so.6

#11 0x00007f848a4c4708 in ?? ()

#12 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f848bd52700 (LWP 4199)):

#0 0x00007f8489a78fd0 in base::internal::SpinLockDelay(int volatile*, int, int) () from /usr/local/lib/libtcmalloc.so.4

#1 0x00007f8489a78dbc in SpinLock::SlowLock() () from /usr/local/lib/libtcmalloc.so.4

#2 0x00007f8489a6db63 in tcmalloc::ThreadCache::CreateCacheIfNecessary() () from /usr/local/lib/libtcmalloc.so.4

#3 0x00007f8489a5c2d6 in (anonymous namespace)::cpp_alloc(unsigned long, bool) () from /usr/local/lib/libtcmalloc.so.4

#4 0x00007f8489a7bc98 in tc_new () from /usr/local/lib/libtcmalloc.so.4

#5 0x00007f848a4b641f in ?? ()

#6 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f848b351700 (LWP 4200)):