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我用ACE的Reactor框架写的一个简单udp服务器框架如下:我对其进行压力测试,结果发现问题很大。
当每秒接受的数据包到11000个(每个包1400字节,总共42K字节)左右时,服务器耗尽了所有的cpu,但内存占用非常少不到5%。pc是赛阳2.6,512M内存,系统为redhead9.0,2.6内核。各位看看问题出在什么地方!
以下内容为程序代码:
-
- #include "ace/OS_main.h"
- #include "ace/OS_NS_string.h"
- #include "ace/OS_NS_unistd.h"
- #include "ace/Reactor.h"
- #include "ace/Process.h"
- #include "ace/SOCK_Dgram.h"
- #include "ace/INET_Addr.h"
- #include "ace/Log_Msg.h"
- #include "ace/Thread_Manager.h"
- #include "ace/Task_T.h"
- #include "ace/Shared_Memory_Pool.h"
- //#include "ace/Process_Mutex.h"
- #include "ace/Malloc.h"
- #include "ace/Malloc_T.h"
- #include "ace/Shared_Memory_MM.h"
- #include "client.h"
- #define SERVER_PORT 10101
- #define POOLNAME "mypoll"
- typedef ACE_Malloc<ACE_SHARED_MEMORY_POOL, ACE_SYNCH_MUTEX> myalloc;
- static const size_t TASK_THREAD_POOL_SIZE = 5;
- myalloc shm_malloc(POOLNAME);
- static int packages = 0;
- static int total_bytes = 0;
- class Task_Worker: public ACE_Task<ACE_MT_SYNCH>
- {
- public:
- virtual int svc(void)
- {
- while(1)
- {
- ACE_Message_Block *mb = NULL;
- if(this->getq(mb) == -1)
- {
- continue;
- }
- process_task(mb);
- }
- return 0;
- }
- private:
- void process_task(ACE_Message_Block *mb)
- {
- PKG_HEADER header;
- memcpy(&header, mb->rd_ptr(), sizeof(PKG_HEADER));
- header.magic_num = ntohl(header.magic_num);
- header.index = ntohl(header.index);
- header.check_sum = ntohl(header.check_sum);
- //printf("magic[%d]index[%d]checksum[%d]\n", header.magic_num, header.index, header.check_sum);
- mb->release();
- }
- };
- class Task_Manager: public ACE_Task<ACE_MT_SYNCH>
- {
- public:
- virtual int svc(void)
- {
- Task_Worker task_tp;
- task_tp.activate(THR_NEW_LWP | THR_JOINABLE, TASK_THREAD_POOL_SIZE);
- while(1)
- {
- ACE_Message_Block *mb = NULL;
- if(this->getq(mb) < 0)
- {
- task_tp.msg_queue()->deactivate();
- task_tp.wait();
- }
- task_tp.putq(mb);
- }
- return 0;
- }
- };
- class Dgram_Endpoint : public ACE_Event_Handler
- {
- public:
- Task_Manager task_mgr;
- Dgram_Endpoint (const ACE_INET_Addr &local_addr);
- virtual ACE_HANDLE get_handle (void) const;
- virtual int handle_input (ACE_HANDLE handle);
- virtual int handle_timeout (const ACE_Time_Value & tv,const void *arg = 0);
- virtual int handle_close (ACE_HANDLE handle,ACE_Reactor_Mask close_mask);
- virtual int handle_signal (int signum, siginfo_t*, ucontext_t*);
- int send (const char *buf, size_t len, const ACE_INET_Addr &);
- private:
- ACE_SOCK_Dgram endpoint_;
- };
- int Dgram_Endpoint::send (const char *buf,size_t len,const ACE_INET_Addr &addr)
- {
- return this->endpoint_.send (buf, len, addr);
- }
- Dgram_Endpoint::Dgram_Endpoint (const ACE_INET_Addr &local_addr)
- : endpoint_(local_addr)
- {
- task_mgr.activate();
- }
- ACE_HANDLE Dgram_Endpoint::get_handle (void) const
- {
- return this->endpoint_.get_handle();
- }
- int Dgram_Endpoint::handle_close (ACE_HANDLE handle,ACE_Reactor_Mask)
- {
- ACE_DEBUG((LM_DEBUG, "************handle_close***********\n"));
- ACE_UNUSED_ARG (handle);
- this->endpoint_.close();
- delete this;
- return 0;
- }
- static int is_heart_package(char *buf, size_t size)
- {
- unsigned long data;
- if (size<4)
- return -1;
- memcpy(&data, buf, sizeof(data));
- data = ntohl(data);
- if (data == 0x12345678)
- {
- //printf("yes it's heart beat package\n");
- return 0;
- }
- else
- return -1;
- }
- int Dgram_Endpoint::handle_input (ACE_HANDLE)
- {
- char buf[BUFSIZ];
- ACE_INET_Addr from_addr;
- char address[32];
- ssize_t nbytes = this->endpoint_.recv (buf, sizeof(buf), from_addr);
- packages++;
- total_bytes += nbytes;
-
- #if 0
- if (nbytes == -1)
- ACE_ERROR ((LM_ERROR,"%p","handle_input error\n"));
- else
- ACE_DEBUG ((LM_DEBUG, "[%d]bytes from[%s] received:%s\n", nbytes, address, buf));
- #endif
- if (0 == is_heart_package(buf, nbytes))
- {
- return 0;
- }
- ACE_Message_Block *mb = NULL;
- //mb = shm_malloc.malloc(sizeof(ACE_Message_Block));
- ACE_NEW_RETURN(mb, ACE_Message_Block(nbytes, ACE_Message_Block::MB_DATA, 0, buf), -1);
- mb->wr_ptr(nbytes);
- this->task_mgr.putq(mb);
- return 0;
- }
- int Dgram_Endpoint::handle_timeout (const ACE_Time_Value &,const void *)
- {
- ACE_DEBUG ((LM_DEBUG,"[%d] packages [%d]K bytes are received per secondt\n", packages, total_bytes/1024 ));
- packages = 0;
- total_bytes = 0;
- return 0;
- }
- int Dgram_Endpoint::handle_signal (int signum, siginfo_t* siginfo, ucontext_t* context)
- {
- return ACE_Event_Handler::handle_signal (signum, siginfo, context);
- }
- int ACE_TMAIN (int argc, ACE_TCHAR *argv[])
- {
- ACE_INET_Addr local_addr(SERVER_PORT);
- Dgram_Endpoint *endpoint;
- ACE_NEW_RETURN (endpoint,Dgram_Endpoint (local_addr),-1);
- if (ACE_Reactor::instance ()->register_handler(endpoint,ACE_Event_Handler::READ_MASK) == -1)
- {
- ACE_ERROR_RETURN ((LM_ERROR,"ACE_Reactor::register_handler"),-1);
- }
- ACE_Time_Value time_out(1);
- ACE_Reactor::instance()->schedule_timer(endpoint, (void *)"time out", ACE_Time_Value::zero, time_out);
- #if 0
- if (-1 == ACE_Reactor::instance()->register_handler(SIGINT, endpoint))
- {
- ACE_ERROR_RETURN((LM_ERROR, "fail to register SIGINT handler"), -1);
- }
- #endif
- ACE_Reactor::instance()->run_event_loop();
- return 0;
- }
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