src/frostfs_testlib/load/k6.py

@@ -34,7 +34,6 @@ class LoadResults:
 
 class K6:
     _k6_process: RemoteProcess
-    _start_time: datetime
 
     def __init__(
         self,
@@ -61,6 +60,18 @@ class K6:
 
         self._k6_dir: str = k6_dir
 
+        command = (
+            f"{self._k6_dir}/k6 run {self._generate_env_variables()} "
+            f"{self._k6_dir}/scenarios/{self.load_params.scenario.value}.js"
+        )
+        user = STORAGE_USER_NAME if self.load_params.scenario == LoadScenario.LOCAL else None
+        process_id = (
+            self.load_params.load_id
+            if self.load_params.scenario != LoadScenario.VERIFY
+            else f"{self.load_params.load_id}_verify"
+        )
+        self._k6_process = RemoteProcess.create(command, self.shell, self.load_params.working_dir, user, process_id)
+
     @property
     def process_dir(self) -> str:
         return self._k6_process.process_dir
@@ -111,15 +122,15 @@ class K6:
         reporter.attach("\n".join(f"{param}: {value}" for param, value in env_vars.items()), "K6 ENV variables")
         return " ".join([f"-e {param}='{value}'" for param, value in env_vars.items() if value is not None])
 
+    def get_start_time(self) -> datetime:
+        return datetime.fromtimestamp(self._k6_process.start_time())
+
+    def get_end_time(self) -> datetime:
+        return datetime.fromtimestamp(self._k6_process.end_time())
+
     def start(self) -> None:
         with reporter.step(f"Start load from loader {self.loader.ip} on endpoints {self.endpoints}"):
-            self._start_time = int(datetime.utcnow().timestamp())
+            self._k6_process.start()
-            command = (
-                f"{self._k6_dir}/k6 run {self._generate_env_variables()} "
-                f"{self._k6_dir}/scenarios/{self.load_params.scenario.value}.js"
-            )
-            user = STORAGE_USER_NAME if self.load_params.scenario == LoadScenario.LOCAL else None
-            self._k6_process = RemoteProcess.create(command, self.shell, self.load_params.working_dir, user)
 
     def wait_until_finished(self, soft_timeout: int = 0) -> None:
         with reporter.step(f"Wait until load is finished from loader {self.loader.ip} on endpoints {self.endpoints}"):
@@ -128,8 +139,10 @@ class K6:
             else:
                 timeout = self.load_params.load_time or 0
 
+            start_time = int(self.get_start_time().timestamp())
+
             current_time = int(datetime.utcnow().timestamp())
-            working_time = current_time - self._start_time
+            working_time = current_time - start_time
             remaining_time = timeout - working_time
 
             setup_teardown_time = (
@@ -146,7 +159,7 @@ class K6:
             original_timeout = timeout
 
             timeouts = {
-                "K6 start time": self._start_time,
+                "K6 start time": start_time,
                 "Current time": current_time,
                 "K6 working time": working_time,
                 "Remaining time for load": remaining_time,

src/frostfs_testlib/load/load_report.py

@@ -17,11 +17,15 @@ class LoadReport:
         self.start_time: Optional[datetime] = None
         self.end_time: Optional[datetime] = None
 
-    def set_start_time(self):
+    def set_start_time(self, time: datetime = None):
-        self.start_time = datetime.utcnow()
+        if time is None:
+            time = datetime.utcnow()
+        self.start_time = time
 
-    def set_end_time(self):
+    def set_end_time(self, time: datetime = None):
-        self.end_time = datetime.utcnow()
+        if time is None:
+            time = datetime.utcnow()
+        self.end_time = time
 
     def add_summaries(self, load_summaries: dict):
         self.load_summaries_list.append(load_summaries)
@@ -31,6 +35,7 @@ class LoadReport:
 
     def get_report_html(self):
         report_sections = [
+            [self.load_params, self._get_load_id_section_html],
             [self.load_test, self._get_load_params_section_html],
             [self.load_summaries_list, self._get_totals_section_html],
             [self.end_time, self._get_test_time_html],
@@ -44,9 +49,7 @@ class LoadReport:
         return html
 
     def _get_load_params_section_html(self) -> str:
-        params: str = yaml.safe_dump(
+        params: str = yaml.safe_dump([self.load_test], sort_keys=False, indent=2, explicit_start=True)
-            [self.load_test], sort_keys=False, indent=2, explicit_start=True
-        )
         params = params.replace("\n", "<br>").replace(" ", "&nbsp;")
         section_html = f"""<h3>Scenario params</h3>
 
@@ -55,8 +58,17 @@ class LoadReport:
 
         return section_html
 
+    def _get_load_id_section_html(self) -> str:
+        section_html = f"""<h3>Load ID: {self.load_params.load_id}</h3>
+        <hr>"""
+
+        return section_html
+
     def _get_test_time_html(self) -> str:
-        html = f"""<h3>Scenario duration in UTC time (from agent)</h3>
+        if not self.start_time or not self.end_time:
+            return ""
+
+        html = f"""<h3>Scenario duration</h3>
         {self.start_time} - {self.end_time}<br>
         <hr>
         """
@@ -97,7 +109,7 @@ class LoadReport:
             LoadScenario.gRPC_CAR: "open model",
             LoadScenario.S3_CAR: "open model",
             LoadScenario.LOCAL: "local fill",
-            LoadScenario.S3_LOCAL: "local fill"
+            LoadScenario.S3_LOCAL: "local fill",
         }
 
         return model_map[self.load_params.scenario]
@@ -124,10 +136,7 @@ class LoadReport:
             total_errors: int = 0
             for node_key, errors in errors.items():
                 total_errors += errors
-                if (
+                if self.load_params.k6_process_allocation_strategy == K6ProcessAllocationStrategy.PER_ENDPOINT:
-                    self.load_params.k6_process_allocation_strategy
-                    == K6ProcessAllocationStrategy.PER_ENDPOINT
-                ):
                     per_node_errors_html += self._row(f"At {node_key}", errors)
 
         latency_html = ""
@@ -139,9 +148,7 @@ class LoadReport:
                     for param_name, param_val in latency_dict.items():
                         latency_values += f"{param_name}={param_val:.2f}ms "
 
-                latency_html += self._row(
+                latency_html += self._row(f"{operation_type} latency {node_key.split(':')[0]}", latency_values)
-                    f"{operation_type} latency {node_key.split(':')[0]}", latency_values
-                )
 
         object_size, object_size_unit = calc_unit(self.load_params.object_size, 1)
         duration = self._seconds_to_formatted_duration(self.load_params.load_time)
@@ -180,9 +187,7 @@ class LoadReport:
             write_latency = {}
             write_errors = {}
             requested_write_rate = self.load_params.write_rate
-            requested_write_rate_str = (
+            requested_write_rate_str = f"{requested_write_rate}op/sec" if requested_write_rate else ""
-                f"{requested_write_rate}op/sec" if requested_write_rate else ""
-            )
 
             read_operations = 0
             read_op_sec = 0
@@ -197,20 +202,12 @@ class LoadReport:
             delete_latency = {}
             delete_errors = {}
             requested_delete_rate = self.load_params.delete_rate
-            requested_delete_rate_str = (
+            requested_delete_rate_str = f"{requested_delete_rate}op/sec" if requested_delete_rate else ""
-                f"{requested_delete_rate}op/sec" if requested_delete_rate else ""
-            )
 
             if self.load_params.scenario in [LoadScenario.gRPC_CAR, LoadScenario.S3_CAR]:
-                delete_vus = max(
+                delete_vus = max(self.load_params.preallocated_deleters or 0, self.load_params.max_deleters or 0)
-                    self.load_params.preallocated_deleters or 0, self.load_params.max_deleters or 0
+                write_vus = max(self.load_params.preallocated_writers or 0, self.load_params.max_writers or 0)
-                )
+                read_vus = max(self.load_params.preallocated_readers or 0, self.load_params.max_readers or 0)
-                write_vus = max(
-                    self.load_params.preallocated_writers or 0, self.load_params.max_writers or 0
-                )
-                read_vus = max(
-                    self.load_params.preallocated_readers or 0, self.load_params.max_readers or 0
-                )
             else:
                 write_vus = self.load_params.writers
                 read_vus = self.load_params.readers

src/frostfs_testlib/processes/remote_process.py

@@ -15,21 +15,33 @@ from frostfs_testlib.shell.interfaces import CommandInspector, CommandOptions
 
 
 class RemoteProcess:
-    def __init__(self, cmd: str, process_dir: str, shell: Shell, cmd_inspector: Optional[CommandInspector]):
+    def __init__(
+        self, cmd: str, process_dir: str, shell: Shell, cmd_inspector: Optional[CommandInspector], proc_id: str
+    ):
         self.process_dir = process_dir
         self.cmd = cmd
         self.stdout_last_line_number = 0
         self.stderr_last_line_number = 0
         self.pid: Optional[str] = None
         self.proc_rc: Optional[int] = None
+        self.proc_start_time: Optional[int] = None
+        self.proc_end_time: Optional[int] = None
         self.saved_stdout: Optional[str] = None
         self.saved_stderr: Optional[str] = None
         self.shell = shell
+        self.proc_id: str = proc_id
         self.cmd_inspectors: list[CommandInspector] = [cmd_inspector] if cmd_inspector else []
 
     @classmethod
     @reporter.step("Create remote process")
-    def create(cls, command: str, shell: Shell, working_dir: str = "/tmp", user: Optional[str] = None) -> RemoteProcess:
+    def create(
+        cls,
+        command: str,
+        shell: Shell,
+        working_dir: str = "/tmp",
+        user: Optional[str] = None,
+        proc_id: Optional[str] = None,
+    ) -> RemoteProcess:
         """
         Create a process on a remote host.
 
@@ -40,6 +52,7 @@ class RemoteProcess:
             stderr: contains script errors
             stdout: contains script output
             user: user on behalf whom command will be executed
+            proc_id: process string identificator
 
         Args:
             shell: Shell instance
@@ -49,19 +62,31 @@ class RemoteProcess:
         Returns:
             RemoteProcess instance for further examination
         """
+        if proc_id is None:
+            proc_id = f"{uuid.uuid4()}"
+
         cmd_inspector = SuInspector(user) if user else None
         remote_process = cls(
             cmd=command,
-            process_dir=os.path.join(working_dir, f"proc_{uuid.uuid4()}"),
+            process_dir=os.path.join(working_dir, f"proc_{proc_id}"),
             shell=shell,
             cmd_inspector=cmd_inspector,
+            proc_id=proc_id,
         )
-        remote_process._create_process_dir()
+
-        remote_process._generate_command_script(command)
-        remote_process._start_process()
-        remote_process.pid = remote_process._get_pid()
         return remote_process
 
+    @reporter.step("Start remote process")
+    def start(self):
+        """
+        Starts a process on a remote host.
+        """
+
+        self._create_process_dir()
+        self._generate_command_script()
+        self._start_process()
+        self.pid = self._get_pid()
+
     @reporter.step("Get process stdout")
     def stdout(self, full: bool = False) -> str:
         """
@@ -130,17 +155,48 @@ class RemoteProcess:
         if self.proc_rc is not None:
             return self.proc_rc
 
+        result = self._cat_proc_file("rc")
+        if not result:
+            return None
+
+        self.proc_rc = int(result)
+        return self.proc_rc
+
+    @reporter.step("Get process start time")
+    def start_time(self) -> Optional[int]:
+        if self.proc_start_time is not None:
+            return self.proc_start_time
+
+        result = self._cat_proc_file("start_time")
+        if not result:
+            return None
+
+        self.proc_start_time = int(result)
+        return self.proc_start_time
+
+    @reporter.step("Get process end time")
+    def end_time(self) -> Optional[int]:
+        if self.proc_end_time is not None:
+            return self.proc_end_time
+
+        result = self._cat_proc_file("end_time")
+        if not result:
+            return None
+
+        self.proc_end_time = int(result)
+        return self.proc_end_time
+
+    def _cat_proc_file(self, file: str) -> Optional[str]:
         terminal = self.shell.exec(
-            f"cat {self.process_dir}/rc",
+            f"cat {self.process_dir}/{file}",
             CommandOptions(check=False, extra_inspectors=self.cmd_inspectors, no_log=True),
         )
         if "No such file or directory" in terminal.stderr:
             return None
         elif terminal.stderr or terminal.return_code != 0:
-            raise AssertionError(f"cat process rc was not successful: {terminal.stderr}")
+            raise AssertionError(f"cat process {file} was not successful: {terminal.stderr}")
 
-        self.proc_rc = int(terminal.stdout)
+        return terminal.stdout
-        return self.proc_rc
 
     @reporter.step("Check if process is running")
     def running(self) -> bool:
@@ -195,17 +251,19 @@ class RemoteProcess:
         return terminal.stdout.strip()
 
     @reporter.step("Generate command script")
-    def _generate_command_script(self, command: str) -> None:
+    def _generate_command_script(self) -> None:
-        command = command.replace('"', '\\"').replace("\\", "\\\\")
+        command = self.cmd.replace('"', '\\"').replace("\\", "\\\\")
         script = (
             f"#!/bin/bash\n"
             f"cd {self.process_dir}\n"
+            f"date +%s > {self.process_dir}/start_time\n"
             f"{command} &\n"
             f"pid=\$!\n"
             f"cd {self.process_dir}\n"
             f"echo \$pid > {self.process_dir}/pid\n"
             f"wait \$pid\n"
-            f"echo $? > {self.process_dir}/rc"
+            f"echo $? > {self.process_dir}/rc\n"
+            f"date +%s > {self.process_dir}/end_time\n"
         )
 
         self.shell.exec(

src/frostfs_testlib/storage/controllers/background_load_controller.py

@@ -1,4 +1,5 @@
 import copy
+from datetime import datetime
 from typing import Optional
 
 import frostfs_testlib.resources.optionals as optionals
@@ -10,6 +11,7 @@ from frostfs_testlib.load.load_verifiers import LoadVerifier
 from frostfs_testlib.storage.cluster import ClusterNode
 from frostfs_testlib.storage.dataclasses.frostfs_services import S3Gate, StorageNode
 from frostfs_testlib.storage.dataclasses.wallet import WalletInfo
+from frostfs_testlib.testing.parallel import parallel
 from frostfs_testlib.testing.test_control import run_optionally
 
 
@@ -26,6 +28,7 @@ class BackgroundLoadController:
     endpoints: list[str]
     runner: ScenarioRunner
     started: bool
+    load_reporters: list[LoadReport]
 
     def __init__(
         self,
@@ -45,6 +48,7 @@ class BackgroundLoadController:
         self.loaders_wallet = loaders_wallet
         self.runner = runner
         self.started = False
+        self.load_reporters = []
         if load_params.endpoint_selection_strategy is None:
             raise RuntimeError("endpoint_selection_strategy should not be None")
 
@@ -83,12 +87,20 @@ class BackgroundLoadController:
 
         return all_endpoints[load_type][endpoint_selection_strategy]
 
+    @run_optionally(optionals.OPTIONAL_BACKGROUND_LOAD_ENABLED)
+    @reporter.step("Init k6 instances")
+    def init_k6(self):
+        self.endpoints = self._get_endpoints(self.load_params.load_type, self.load_params.endpoint_selection_strategy)
+        self.runner.init_k6_instances(self.load_params, self.endpoints, self.k6_dir)
+
     @run_optionally(optionals.OPTIONAL_BACKGROUND_LOAD_ENABLED)
     @reporter.step("Prepare load instances")
     def prepare(self):
-        self.endpoints = self._get_endpoints(self.load_params.load_type, self.load_params.endpoint_selection_strategy)
         self.runner.prepare(self.load_params, self.cluster_nodes, self.nodes_under_load, self.k6_dir)
-        self.runner.init_k6_instances(self.load_params, self.endpoints, self.k6_dir)
+        self.init_k6()
+
+    def append_reporter(self, load_report: LoadReport):
+        self.load_reporters.append(load_report)
 
     @run_optionally(optionals.OPTIONAL_BACKGROUND_LOAD_ENABLED)
     def start(self):
@@ -128,16 +140,30 @@ class BackgroundLoadController:
 
     @run_optionally(optionals.OPTIONAL_BACKGROUND_LOAD_ENABLED)
     @reporter.step("Stop and get results of load")
-    def teardown(self, load_report: Optional[LoadReport] = None):
+    def teardown(self):
         if not self.started:
             return
 
         self.stop()
         self.load_summaries = self._get_results()
         self.started = False
-        if load_report:
+
+        start_time = min(self._get_start_times())
+        end_time = max(self._get_end_times())
+
+        for load_report in self.load_reporters:
+            load_report.set_start_time(start_time)
+            load_report.set_end_time(end_time)
             load_report.add_summaries(self.load_summaries)
 
+    def _get_start_times(self) -> list[datetime]:
+        futures = parallel([k6.get_start_time for k6 in self.runner.get_k6_instances()])
+        return [future.result() for future in futures]
+
+    def _get_end_times(self) -> list[datetime]:
+        futures = parallel([k6.get_end_time for k6 in self.runner.get_k6_instances()])
+        return [future.result() for future in futures]
+
     @run_optionally(optionals.OPTIONAL_BACKGROUND_LOAD_ENABLED)
     @reporter.step("Run post-load verification")
     def verify(self):

src/frostfs_testlib/storage/controllers/cluster_state_controller.py

@@ -540,8 +540,9 @@ class ClusterStateController:
         options = CommandOptions(check=False)
         return self.shell.exec(f"ping {node.host.config.address} -c 1", options).return_code
 
-    @retry(max_attempts=60, sleep_interval=5, expected_result=HostStatus.ONLINE)
+    @retry(
-    @reporter.step("Waiting for {node} to go online")
+        max_attempts=60, sleep_interval=10, expected_result=HostStatus.ONLINE, title="Waiting for {node} to go online"
+    )
     def _wait_for_host_online(self, node: ClusterNode):
         try:
             ping_result = self._ping_host(node)
@@ -552,8 +553,9 @@ class ClusterStateController:
             logger.warning(f"Host ping fails with error {err}")
             return HostStatus.OFFLINE
 
-    @retry(max_attempts=60, sleep_interval=5, expected_result=HostStatus.OFFLINE)
+    @retry(
-    @reporter.step("Waiting for {node} to go offline")
+        max_attempts=60, sleep_interval=10, expected_result=HostStatus.OFFLINE, title="Waiting for {node} to go offline"
+    )
     def _wait_for_host_offline(self, node: ClusterNode):
         try:
             ping_result = self._ping_host(node)