diff --git a/pyphare/pyphare/core/phare_utilities.py b/pyphare/pyphare/core/phare_utilities.py
index 27a092129..5a322c417 100644
--- a/pyphare/pyphare/core/phare_utilities.py
+++ b/pyphare/pyphare/core/phare_utilities.py
@@ -1,3 +1,4 @@
+import os
 import math
 import numpy as np
 
@@ -174,3 +175,22 @@ def deep_copy(item, memo, excludes=[]):
         else:
             setattr(that, key, deepcopy(value, memo))
     return that
+
+
+def write_system_state_stats(file_path):
+    import json, psutil, pathlib, datetime
+
+    file_path = pathlib.Path(file_path) if isinstance(file_path, str) else file_path
+    proc = psutil.Process(pid=os.getpid())
+    file_path.parent.mkdir(exist_ok=True, parents=True)
+
+    with open(file_path, "w") as file:
+        json.dump(
+            dict(
+                time=datetime.datetime.utcnow().timestamp(),
+                cpu_use=proc.cpu_percent(interval=0.1),
+                open_files=len(proc.open_files()),
+                mem_use=proc.memory_info().rss / 1024**2,
+            ),
+            file,
+        )
diff --git a/pyphare/pyphare/pharein/simulation.py b/pyphare/pyphare/pharein/simulation.py
index 57116d45a..aab7070ea 100644
--- a/pyphare/pyphare/pharein/simulation.py
+++ b/pyphare/pyphare/pharein/simulation.py
@@ -581,14 +581,16 @@ def check_clustering(**kwargs):
     return clustering
 
 
-def check_loadbalancing(**kwargs):
-    valid_keys = ["nppc", "homogeneous"]
-    loadbalancing = kwargs.get("loadbalancing", "nppc")
-    if loadbalancing not in valid_keys:
-        raise ValueError(
-            f"Error: loadbalancing type is not supported, supported types are {valid_keys}"
-        )
-    return loadbalancing
+def check_system_state_writes(**kwargs):
+    write_time = kwargs.get("system_state_write_every_t", 0)
+    if write_time > 0:
+        try:
+            import psutil
+        except ImportError as e:
+            raise ValueError(
+                "psutil is not available for writing system usage information"
+            )
+    return write_time
 
 
 # ------------------------------------------------------------------------------
@@ -626,6 +628,7 @@ def wrapper(simulation_object, **kwargs):
             "description",
             "dry_run",
             "write_reports",
+            "system_state_write_every_t",
         ]
 
         accepted_keywords += check_optional_keywords(**kwargs)
@@ -699,6 +702,8 @@ def wrapper(simulation_object, **kwargs):
             "write_reports", os.environ.get("PHARE_TESTING", "0") != "1"
         )
 
+        kwargs["system_state_write_every_t"] = check_system_state_writes(**kwargs)
+
         return func(simulation_object, **kwargs)
 
     return wrapper
diff --git a/pyphare/pyphare/simulator/simulator.py b/pyphare/pyphare/simulator/simulator.py
index 3e6229924..16c5743ee 100644
--- a/pyphare/pyphare/simulator/simulator.py
+++ b/pyphare/pyphare/simulator/simulator.py
@@ -71,7 +71,7 @@ def __init__(self, simulation, auto_dump=True, **kwargs):
             self.print_eol = "\r"
         self.print_eol = kwargs.get("print_eol", self.print_eol)
         self.log_to_file = kwargs.get("log_to_file", True)
-
+        self.write_system_state_time = 0
         self.auto_dump = auto_dump
         import pyphare.simulator._simulator as _simulator
 
@@ -161,6 +161,7 @@ def advance(self, dt=None):
 
         if self._auto_dump() and self.post_advance != None:
             self.post_advance(self.cpp_sim.currentTime())
+        self.write_system_state_stats()
         return self
 
     def times(self):
@@ -255,6 +256,23 @@ def _check_init(self):
         if self.cpp_sim is None:
             self.initialize()
 
+    def write_system_state_stats(self):
+        import pyphare.core.phare_utilities as pu
+        from pyphare.cpp import cpp_lib
+
+        if self.simulation.system_state_write_every_t == 0:
+            return
+        diff_time = self.cpp_sim.currentTime() - self.write_system_state_time
+        if (
+            pu.fp_equal(diff_time, self.simulation.system_state_write_every_t)
+            or diff_time > self.simulation.system_state_write_every_t
+        ):
+            self.write_system_state_time = self.cpp_sim.currentTime()
+            time = "{:.10f}".format(self.cpp_sim.currentTime())
+            pu.write_system_state_stats(
+                f".phare/sys/stats/{cpp_lib().mpi_rank()}/{time}"
+            )
+
     def _log_to_file(self):
         """
         send C++ std::cout logs to files with env var PHARE_LOG
diff --git a/requirements.txt b/requirements.txt
index 2ecd76178..21f01139a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,3 +7,4 @@ scipy
 matplotlib
 seaborn
 sphinx_rtd_theme
+psutil