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[Bug]: 运行一段时间之后无法连接上端口模拟进程server #421

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gystar opened this issue Nov 27, 2023 · 13 comments
Closed

[Bug]: 运行一段时间之后无法连接上端口模拟进程server #421

gystar opened this issue Nov 27, 2023 · 13 comments

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@gystar
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gystar commented Nov 27, 2023

1.我在一个Robert模型上使用SPU进行分类任务(非text generation)的inference,会循环跑很多个数据点。但是跑几十个数据点之后就会很容易在client端(model inference端)报错:
Traceback (most recent call last):
File "roberta.py", line 114, in
pre = run_on_spu(inputs_ids, PRETRAINED_MODEL.params)
File "roberta.py", line 59, in run_on_spu
outputs = ppd.device("SPU")(
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/spu/utils/distributed.py", line 679, in call
results = [future.result() for future in futures]
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/spu/utils/distributed.py", line 679, in
results = [future.result() for future in futures]
File "/xxx/miniconda3/envs/spu/lib/python3.8/concurrent/futures/_base.py", line 437, in result
return self.__get_result()
File "/xxx/miniconda3/envs/spu/lib/python3.8/concurrent/futures/_base.py", line 389, in __get_result
raise self._exception
File "/xxx/miniconda3/envs/spu/lib/python3.8/concurrent/futures/thread.py", line 57, in run
result = self.fn(*self.args, **self.kwargs)
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/spu/utils/distributed.py", line 249, in run
return self._call(self._stub.Run, fn, *args, **kwargs)
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/spu/utils/distributed.py", line 238, in _call
rsp_data = rebuild_messages(rsp_itr.data for rsp_itr in rsp_gen)
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/spu/utils/distributed.py", line 218, in rebuild_messages
return b''.join([msg for msg in msgs])
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/spu/utils/distributed.py", line 218, in
return b''.join([msg for msg in msgs])
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/spu/utils/distributed.py", line 238, in
rsp_data = rebuild_messages(rsp_itr.data for rsp_itr in rsp_gen)
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/grpc/_channel.py", line 541, in next
return self._next()
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/grpc/_channel.py", line 967, in _next
raise self
grpc._channel._MultiThreadedRendezvous: <_MultiThreadedRendezvous of RPC that terminated with:
status = StatusCode.UNAVAILABLE
details = "Socket closed"
debug_error_string = "UNKNOWN:Error received from peer {grpc_message:"Socket closed", grpc_status:14, created_time:"2023-11-27T21:18:41.065482153+08:00"}"

2.同时在server端(端口模拟端)会报错:

[2023-11-27 21:15:33.074] [�[32minfo�[m] [api.cc:204] Link details: total send bytes 4412083004, send actions 25207
W1127 21:18:40.795603 3191480 external/com_github_brpc_brpc/src/brpc/input_messenger.cpp:375] Fail to read from Socket{id=0 fd=17 addr=127.0.0.1:9930:35130} (0x7fae24068280): Connection reset by peer
I1127 21:18:40.895106 3191540 external/com_github_brpc_brpc/src/brpc/socket.cpp:2466] Checking Socket{id=0 addr=127.0.0.1:9930} (0x7fae20068280)
I1127 21:18:40.905504 3191551 external/com_github_brpc_brpc/src/brpc/socket.cpp:2466] Checking Socket{id=0 addr=127.0.0.1:9930} (0x7fae24068280)
[2023-11-27 21:18:41.428] [�[32minfo�[m] [channel.cc:346] send request failed and retry, retry_count=1, max_retry=3, interval_ms=1000, message=[external/yacl/yacl/link/transport/interconnection_link.cc:56] cntl ErrorCode '104', http status code '0', response header '', response body '', error msg '[E104]Fail to read from Socket{id=0 fd=17 addr=127.0.0.1:9930:35130} (0x0x7fae24068280): Connection reset by peer'
Stacktrace:
#0 yacl::link::transport::BrpcLink::SendRequest()+0x7faece344ed0
#1 yacl::link::transport::Channel::SendRequestWithRetry()+0x7faece358639
#2 yacl::link::transport::Channel::SendMono()+0x7faece358987
#3 yacl::link::transport::SendTask::Proc()+0x7faece35ba72
#4 bthread::TaskGroup::task_runner()+0x7faece4dce17
#5 bthread_make_fcontext+0x7faece4f1d71
......
[2023-11-27 21:18:45.440] [�[32minfo�[m] [channel.cc:346] send request failed and retry, retry_count=3, max_retry=3, interval_ms=5000, message=[external/yacl/yacl/link/transport/interconnection_link.cc:56] cntl ErrorCode '112', http status code '0', response header '', response body '', error msg '[E112]Not connected to 127.0.0.1:9930 yet, server_id=0'
Stacktrace:
#0 yacl::link::transport::BrpcLink::SendRequest()+0x7faece344ed0
#1 yacl::link::transport::Channel::SendRequestWithRetry()+0x7faece358639
#2 yacl::link::transport::Channel::SendMono()+0x7faece358987
#3 yacl::link::transport::SendTask::Proc()+0x7faece35ba72
#4 bthread::TaskGroup::task_runner()+0x7faece4dce17
#5 bthread_make_fcontext+0x7faece4f1d71

[2023-11-27 21:18:50.451] [�[31m�[1merror�[m] [channel.cc:98] SendImpl error [external/yacl/yacl/link/transport/interconnection_link.cc:56] cntl ErrorCode '112', http status code '0', response header '', response body '', error msg '[E112]Not connected to 127.0.0.1:9930 yet, server_id=0'
Stacktrace:
#0 yacl::link::transport::BrpcLink::SendRequest()+0x7faece344ed0
#1 yacl::link::transport::Channel::SendRequestWithRetry()+0x7faece358639
#2 yacl::link::transport::Channel::SendMono()+0x7faece358987
#3 yacl::link::transport::SendTask::Proc()+0x7faece35ba72
#4 bthread::TaskGroup::task_runner()+0x7faece4dce17
#5 bthread_make_fcontext+0x7faece4f1d71

[2023-11-27 21:18:50.451] [�[31m�[1merror�[m] [channel.cc:98] SendImpl error [external/yacl/yacl/link/transport/interconnection_link.cc:56] cntl ErrorCode '112', http status code '0', response header '', response body '', error msg '[E112]Not connected to 127.0.0.1:9930 yet, server_id=0'
Stacktrace:
#0 yacl::link::transport::BrpcLink::SendRequest()+0x7faece344ed0
#1 yacl::link::transport::Channel::SendRequestWithRetry()+0x7faece358639
#2 yacl::link::transport::Channel::SendMono()+0x7faece358987
#3 yacl::link::transport::SendTask::Proc()+0x7faece35ba72
#4 bthread::TaskGroup::task_runner()+0x7faece4dce17
#5 bthread_make_fcontext+0x7faece4f1d71

[2023-11-27 21:18:50.452] [�[31m�[1merror�[m] [channel.cc:98] SendImpl error [external/yacl/yacl/link/transport/interconnection_link.cc:56] cntl ErrorCode '112', http status code '0', response header '', response body '', error msg '[E112]Not connected to 127.0.0.1:9930 yet, server_id=0'
Stacktrace:
#0 yacl::link::transport::BrpcLink::SendRequest()+0x7faece344ed0
#1 yacl::link::transport::Channel::SendRequestWithRetry()+0x7faece358639
#2 yacl::link::transport::Channel::SendMono()+0x7faece358987
#3 yacl::link::transport::SendTask::Proc()+0x7faece35ba72
#4 bthread::TaskGroup::task_runner()+0x7faece4dce17
#5 bthread_make_fcontext+0x7faece4f1d71

I1127 21:18:51.702651 3191492 external/com_github_brpc_brpc/src/brpc/socket.cpp:2466] Checking Socket{id=1 addr=127.0.0.1:9931} (0x7fae20068500)
terminate called after throwing an instance of 'yacl::IoError'
what(): [external/yacl/yacl/link/transport/channel.cc:405] Get data timeout, key=root-176919:P2P-1:0->2
Stacktrace:
#0 yacl::link::Context::RecvInternal()+0x7faece34f99b
#1 yacl::link::Context::Recv()+0x7faece351e06
#2 spu::mpc::Communicator::rotate()+0x7faecdf9eda5
#3 spu::mpc::aby3::MatMulAA::proc()+0x7faecd68c54b
#4 spu::dynDispatch<>()+0x7faecdfe7708
#5 spu::mpc::mmul_aa()+0x7faecdffcf45
#6 spu::mpc::mmul_ss()+0x7faecdfef909
#7 spu::kernel::hal::_mmul_ss()+0x7faecdfdb86b
#8 spu::kernel::hal::_mmul_impl()+0x7faecdfc80a2
#9 spu::kernel::hal::_mmul()+0x7faecdfcdf6e
#10 spu::kernel::hal::f_mmul()+0x7faecdf63390
#11 spu::kernel::hal::(anonymous namespace)::dtypeBinaryDispatch<>()+0x7faecdf4ba4c
#12 spu::kernel::hal::matmul()+0x7faecdf4c49d
#13 spu::kernel::hlo::Dot()+0x7faecdf3030f
#14 spu::device::pphlo::dispatchOp<>()+0x7faecd911a2c
#15 spu::device::pphlo::dispatchOp<>()+0x7faecd913e9c

Process Process-4:
Traceback (most recent call last):
File "nodectl.py", line 57, in
worker.join()
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/multiprocess/process.py", line 149, in join
^C File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/multiprocess/popen_fork.py", line 47, in wait
return self.poll(os.WNOHANG if timeout == 0.0 else 0)
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/multiprocess/popen_fork.py", line 27, in poll
pid, sts = os.waitpid(self.pid, flag)
KeyboardInterrupt
^CError in atexit._run_exitfuncs:
Traceback (most recent call last):
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/multiprocess/popen_fork.py", line 27, in poll
pid, sts = os.waitpid(self.pid, flag)
KeyboardInterrupt
Exception ignored in: <Finalize object, dead>
Traceback (most recent call last):
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/multiprocess/util.py", line 224, in call
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/multiprocess/util.py", line 464, in close_fds
AttributeError: 'NoneType' object has no attribute 'close'
Exception ignored in: <Finalize object, dead>
Traceback (most recent call last):
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/multiprocess/util.py", line 224, in call
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/multiprocess/util.py", line 464, in close_fds
AttributeError: 'NoneType' object has no attribute 'close'
Exception ignored in: <Finalize object, dead>
Traceback (most recent call last):
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/multiprocess/util.py", line 224, in call
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/multiprocess/util.py", line 464, in close_fds
AttributeError: 'NoneType' object has no attribute 'close'
Exception ignored in: <Finalize object, dead>
Traceback (most recent call last):
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/multiprocess/util.py", line 224, in call
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/multiprocess/util.py", line 464, in close_fds
AttributeError: 'NoneType' object has no attribute 'close'

3.不重启server的情况下,再使用client必定失败;重启server,从失败的datapoint开始,又能正常运行几十个datapoint。 若不重启server,client会报错:

Traceback (most recent call last):
File "roberta.py", line 87, in
ppd.init(conf["nodes"], conf["devices"])
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/spu/utils/distributed.py", line 1110, in init
_CONTEXT = HostContext(nodes_def, devices_def)
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/spu/utils/distributed.py", line 1037, in init
self.devices[name] = SPU(
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/spu/utils/distributed.py", line 952, in init
results = [future.result() for future in futures]
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/spu/utils/distributed.py", line 952, in
results = [future.result() for future in futures]
File "/xxx/miniconda3/envs/spu/lib/python3.8/concurrent/futures/_base.py", line 437, in result
return self.__get_result()
File "/xxx/miniconda3/envs/spu/lib/python3.8/concurrent/futures/_base.py", line 389, in __get_result
raise self._exception
File "/xxx/miniconda3/envs/spu/lib/python3.8/concurrent/futures/thread.py", line 57, in run
result = self.fn(*self.args, **self.kwargs)
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/spu/utils/distributed.py", line 249, in run
return self._call(self._stub.Run, fn, *args, **kwargs)
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/spu/utils/distributed.py", line 238, in _call
rsp_data = rebuild_messages(rsp_itr.data for rsp_itr in rsp_gen)
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/spu/utils/distributed.py", line 218, in rebuild_messages
return b''.join([msg for msg in msgs])
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/spu/utils/distributed.py", line 218, in
return b''.join([msg for msg in msgs])
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/spu/utils/distributed.py", line 238, in
rsp_data = rebuild_messages(rsp_itr.data for rsp_itr in rsp_gen)
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/grpc/_channel.py", line 541, in next
return self._next()
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/grpc/_channel.py", line 950, in _next
raise self
grpc._channel._MultiThreadedRendezvous: <_MultiThreadedRendezvous of RPC that terminated with:
status = StatusCode.UNAVAILABLE
details = "failed to connect to all addresses; last error: UNKNOWN: ipv4:127.0.0.1:9920: Failed to connect to remote host: Connection refused"
debug_error_string = "UNKNOWN:failed to connect to all addresses; last error: UNKNOWN: ipv4:127.0.0.1:9920: Failed to connect to remote host: Connection refused {grpc_status:14, created_time:"2023-11-28T08:47:33.462023675+08:00"}"

@tpppppub
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可能是内存不足导致程序崩了,建议先小数据量小模型验证下程序正确性

@gystar
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gystar commented Nov 28, 2023

经过验证,我换了一个128G的主机,经过长时间的运行从之前64G内存的跑20个的datapoint到现在能跑200个datapoint左右,发现内存一直在缓慢增加,我看过自己的程序,里面没有增加内存的list等结构,怀疑可能是server存在内存泄露。

@tpppppub
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能提供下代码吗?我们好复现一下

@gystar
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gystar commented Nov 29, 2023

这是我统计的内存log,每次跑完一次inference进行统计,可以看到client的内存每次几乎没有变化,但是总的使用内存一直在增加:
0it [00:00, ?it/s]total free mem 37.20, mem of current process 0.03
1it [02:25, 145.40s/it]total used mem 44.40, mem of current process 0.03
2it [05:01, 151.45s/it]total used mem 47.20, mem of current process 0.03
3it [07:21, 146.42s/it]total used mem 53.20, mem of current process 0.03
4it [09:42, 144.39s/it]total used mem 58.20, mem of current process 0.03
5it [12:13, 146.60s/it]total used mem 61.50, mem of current process 0.03
然后使用ps命令能看到server相关进程的内存持续在增加:
total used free shared buff/cache available
Mem: 62Gi 38Gi 17Gi 32Mi 7.1Gi 23Gi
Swap: 9.5Gi 0B 9.5Gi
pid ppid %mem
spu server:
121843 30363 0.1
121870 121843 13.6
121872 121843 13.2
121874 121843 13.0
121876 121843 0.1
121878 121843 14.0
54.0
model inference:
122119 31189 3.0

@gystar
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gystar commented Nov 29, 2023

能提供下代码吗?我们好复现一下

代码发你同事了

@warriorpaw
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distributed本身是一个性能测试使用的框架,为了性能效果,会根据堆积的对象个数延迟执行GC操作。
如果每次跑都加载一次模型,那么这些模型就会堆积到待删除的队列里,并且你这个模型很大,所以看起来像是内存泄漏。

换个写法,模型加载一次重复使用,就可以了,diff如下

--- /Users/paw/Desktop/1/test.py	Mon Nov 27 10:46:58 2023
+++ /Users/paw/Desktop/1/test_2.py	Wed Nov 29 11:14:19 2023
@@ -60,13 +60,12 @@
     return df.func.tolist(), df.target.tolist()
 
 
-def run_on_spu(inputs_ids):
+def run_on_spu(inputs_ids, spu_params):
     # encode context the generation is conditioned
     input_ids = ppd.device("P1")(lambda x: x)(inputs_ids)
-    params = ppd.device("P2")(lambda x: x)(pretrained_model.params)
     outputs = ppd.device("SPU")(
         text_classification,
-    )(input_ids, params)
+    )(input_ids, spu_params)
 
     outputs = ppd.get(outputs)
     return outputs
@@ -103,6 +102,8 @@
     pre_spu = []
     time_cpu = 0
     time_spu = 0
+    spu_params = ppd.Device.move(ppd.device("P2")(lambda x: x)(pretrained_model.params), ppd.device("SPU"))
     for n,(func, label) in tqdm.tqdm(enumerate (zip(funcs, labels))):
         LOGGER.info(f"-------processing [ {n+1+resume_from}/{len(funcs)+resume_from} ]\n")
         inputs_ids = tokenizer.encode(func, return_tensors="jax")
@@ -117,7 +118,7 @@
         LOGGER.info(f"duration {t2 - t1}, res {pre}")
 
         LOGGER.info("\n------\nRun on SPU")        
-        pre = run_on_spu(inputs_ids)
+        pre = run_on_spu(inputs_ids, spu_params)
         pre_spu.append(bool(pre))
         t3 = time.time()
         time_spu += t3 - t2

@gystar
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gystar commented Nov 29, 2023

@warriorpaw , 改了之后会报错:
Traceback (most recent call last):
File "roberta.py", line 110, in
spu_model_params = ppd.Device.move(ppd.device("P2")(lambda x: x)(PRETRAINED_MODEL.params), ppd.device("SPU"))
File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/spu/utils/distributed.py", line 449, in move
move_fn = Device.TRANS_KERNELS[obj.device.class, dest.class]
AttributeError: 'dict' object has no attribute 'device'

@warriorpaw
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@warriorpaw , 改了之后会报错: Traceback (most recent call last): File "roberta.py", line 110, in spu_model_params = ppd.Device.move(ppd.device("P2")(lambda x: x)(PRETRAINED_MODEL.params), ppd.device("SPU")) File "/xxx/miniconda3/envs/spu/lib/python3.8/site-packages/spu/utils/distributed.py", line 449, in move move_fn = Device.TRANS_KERNELS[obj.device.class, dest.class] AttributeError: 'dict' object has no attribute 'device'

报错的那句换成

spu_params = ppd.device("SPU")._place_arguments(ppd.device("P2")(lambda x: x)(PRETRAINED_MODEL.params))[0][0]

@gystar
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gystar commented Nov 29, 2023

@warriorpaw 经过修改,可以run了,谢谢。现在的内存状况如下:
0it [00:00, ?it/s]total used mem 80.80, mem of current process 0.03
1it [02:01, 121.06s/it]total used mem 86.20, mem of current process 0.03
2it [04:02, 121.17s/it]total used mem 90.00, mem of current process 0.03
3it [05:47, 113.70s/it]total used mem 90.90, mem of current process 0.03
4it [07:35, 111.41s/it]total used mem 90.80, mem of current process 0.03
5it [09:35, 114.65s/it]total used mem 91.20, mem of current process 0.03

可以发现模型参数相当于一直没有释放,一开始内存就会很高,然而内存还是会缓慢增加。从之前的分析可以得出:
1.重复加载model可能导致有内存没有释放结束,导致“内存泄露”
2.那么一直不断的加载input_id是否也存在此问题呢?也就是造成内存还是不断增加的隐患?
3.能否主动调用GC来进行释放?

补充一点:我在128G的电脑上run,内存从一开始的20%,最后也能长满导致server挂掉。
是否说明延迟释放存在缺陷,导致部分内存没有释放掉?

@warriorpaw
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@warriorpaw 经过修改,可以run了,谢谢。现在的内存状况如下: 0it [00:00, ?it/s]total used mem 80.80, mem of current process 0.03 1it [02:01, 121.06s/it]total used mem 86.20, mem of current process 0.03 2it [04:02, 121.17s/it]total used mem 90.00, mem of current process 0.03 3it [05:47, 113.70s/it]total used mem 90.90, mem of current process 0.03 4it [07:35, 111.41s/it]total used mem 90.80, mem of current process 0.03 5it [09:35, 114.65s/it]total used mem 91.20, mem of current process 0.03

可以发现模型参数相当于一直没有释放,一开始内存就会很高,然而内存还是会缓慢增加。从之前的分析可以得出: 1.重复加载model可能导致有内存没有释放结束,导致“内存泄露” 2.那么一直不断的加载input_id是否也存在此问题呢?也就是造成内存还是不断增加的隐患? 3.能否主动调用GC来进行释放?

补充一点:我在128G的电脑上run,内存从一开始的20%,最后也能长满导致server挂掉。 是否说明延迟释放存在缺陷,导致部分内存没有释放掉?

input_id有同样的问题,但是比模型本身小很多,不会很明显。

没有主动GC接口。

你可以手动减小 distributed.py 文件 1052 行 _GC_COLLECT_THRESHOLD 变量,加快GC触发

@warriorpaw
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无法复现你描述的问题,跑你提供的代码超过12个小时 总计418个迭代,最终内存占用没有超过35GB。测试过程中内存占用有略微增长,可能原因是 malloc 内部未释放碎片导致,但是没看到你描述的快速增长占用超过120+GB的情况。

麻烦提供下系统htop对比截图:刚运行第一个迭代和占用增长到100+GB时的截图,需要能看出来哪些进程增加的占用。感谢

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gystar commented Dec 1, 2023

无法复现你描述的问题,跑你提供的代码超过12个小时 总计418个迭代,最终内存占用没有超过35GB。测试过程中内存占用有略微增长,可能原因是 malloc 内部未释放碎片导致,但是没看到你描述的快速增长占用超过120+GB的情况。

麻烦提供下系统htop对比截图:刚运行第一个迭代和占用增长到100+GB时的截图,需要能看出来哪些进程增加的占用。感谢

@warriorpaw 我私下给你一个阿里云环境,这是必现的问题。下面这个纯净的阿里云系统中,每2小时左右我都需要重启client和server清除内存才能跑下面的datapoint(为此我专门写了一个damon...)
image

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gystar commented Dec 5, 2023

经过在另外两台ubuntu22.04上运行,可以持续跑循环,估计是ubuntu20.04系统glibc malloc的问题了。可以尝试以下方法解决:
安装gperf
sudo apt-get install google-perftools
export LD_PRELOAD=libtcmalloc.so.4

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