[OE-core][kirkstone 22/23] oeqa qemurunner.py: try to avoid reading one character at a time

Steve Sakoman
2023-02-21T14:42:07Z

From: Mikko Rapeli <mikko.rapeli@linaro.org>

Read from serial console with a small delay to bundle data to e.g.
full lines. Reading one character at a time is not needed and causes
busy looping.

Signed-off-by: Mikko Rapeli <mikko.rapeli@linaro.org>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
(cherry picked from commit 0049f6757f6f956fb4cc77b3df6a672c20b53cf4)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
---
meta/lib/oeqa/utils/qemurunner.py | 2 ++
1 file changed, 2 insertions(+)

diff --git a/meta/lib/oeqa/utils/qemurunner.py b/meta/lib/oeqa/utils/qemurunner.py
index aa9e530f1b..925d05a339 100644
--- a/meta/lib/oeqa/utils/qemurunner.py
+++ b/meta/lib/oeqa/utils/qemurunner.py
@@ -647,6 +647,8 @@ class QemuRunner:
except InterruptedError:
continue
if sread:
+ # try to avoid reading single character at a time
+ time.sleep(0.1)
answer = self.server_socket.recv(1024)
if answer:
data += answer.decode('utf-8')
--
2.34.1