Problem storing data with microsecond resolution

1

Hi

I am trying to use InfluxDB to save samples from accelerometer with frequency of 1,6 kHz.
I am using influxdb:latest inside docker container.

my samples litst looks like this:

{'time': '2025-02-18T15:34:24.750512Z', 'value': 1041},
{'time': '2025-02-18T15:34:24.750858Z', 'value': 1043},

I am getting time and value with this:

        time = datetime.datetime.utcnow().strftime('%Y-%m-%dT%H:%M:%S.%fZ')
        sample = { "time": time, "value": self.value}
        self.samples.append(sample)

Then I send samples in a batch of about 1670 samples

        # Called periodically, once per second
        points = []
        for sample in self.samples:
            point = Point("data").field("Linear acceleration", sample["value"]).time(sample["time"])
            points.append(point)
        write_api.write(bucket=bucket, org=org, record=points)
        self.samples.clear()

Then in InfluxDB web interface I see only single point per second and _time is rounded to single seconds:

obraz
obraz2106×523 78.4 KB

Why am I losing samples?