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diff --git a/core/tests/BTtraffic/README b/core/tests/BTtraffic/README new file mode 100644 index 0000000..430488f --- /dev/null +++ b/core/tests/BTtraffic/README @@ -0,0 +1,45 @@ +This is a tool to generate classic Bluetooth traffic with specified period and package size. +Together with the SvcMonitor, which will be called automatically in this android service, can be +used to measure the CPU usage from the Java layer Bluetooth code and the underlying system service +com.android.bluetooth. + +1. Server (Listener) - Client (Sender) model. Both run as an Android service. +2. No pairing needed. Communicate via unsecured RFcomm. Client establishes the connection by +providing the MAC addr of the server. +3. Bluetooth has to be turned on on both side. +4. Client can configure the traffic by specifying the transfer period and package size. +5. A separate monitor process will be automatically forked and will be reading from /proc file +system to calculate the cpu usage. The measurement is updated once per second. +6. The monitor process (com.google.android.experimental.svcmonitor/.ScvMonitor) can be run as an +independent service to measure cpu usage on any similarly configured tests (e.g. wifi, BLE). Refer +to SvcMonitor's README for usage and details. + +Usage: +To instal the test: +On both the server and client device, install the 2 apk: +$ adb install $OUT/system/app/bttraffic/bttraffic.apk +$ adb install $OUT/system/app/svcmonitor/svcmonitor.apk + +To start the service on the SERVER side: +$ adb shell am startservice -a start --ez ack true \ +com.google.android.experimental.bttraffic/.BTtraffic + +To start the service on the CLIENT side: +$ adb shell am startservice -a start \ +-e addr "F8:A9:D0:A8:74:8E" --ei size 1000 --ei period 15 \ +com.google.android.experimental.bttraffic/.BTtraffic + +To stop the test: +On either the server or client: +$ adb shell am startservice -a stop \ +com.google.android.experimental.bttraffic/.BTtraffic + +To look at the data: +$ adb logcat | grep bttraffic + +Options: +-e addr: MAC addr of the server, in uppercase letter. +--ei size: package size, unit: byte; default: 1024, MAX: 20MB +--ei period: system sleep time between sending each package, unit: ms, default: 5000 + ** if -1 is provided, client will only send the package once. +--ez ack: whether acknowledge is required (true/false) |