Daniel P. Berrangé 9a23075cef chardev/char-socket: skip automatic zero-init of large array ...

The 'tcp_chr_read' method has a 4k byte array used for copying
data between the socket and device. Skip the automatic zero-init
of this array to eliminate the performance overhead in the I/O
hot path.

The 'buf' array will be fully initialized when reading data off
the network socket.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20250610123709.835102-7-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

2025-06-12 13:39:08 -04:00

..

baum.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00

char-console.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00

char-fd.c

chardev/char-fd: skip automatic zero-init of large array

2025-06-12 13:39:08 -04:00

char-fe.c

include: Rename sysemu/ -> system/

2024-12-20 17:44:56 +01:00

char-file.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00

char-hmp-cmds.c

qapi: Move include/qapi/qmp/ to include/qobject/

2025-02-10 15:33:16 +01:00

char-hub.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00

char-io.c

Revert "qemu-char: do not operate on sources from finalize callbacks"

2024-07-16 10:45:06 +02:00

char-mux.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00

char-null.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00

char-parallel.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00

char-pipe.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00

char-pty.c

chardev/char-pty: skip automatic zero-init of large array

2025-06-12 13:39:08 -04:00

char-ringbuf.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00

char-serial.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00

char-socket.c

chardev/char-socket: skip automatic zero-init of large array

2025-06-12 13:39:08 -04:00

char-stdio.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00

char-udp.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00

char-win-stdio.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00

char-win.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00

char.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00

chardev-internal.h

chardev/char-hub: implement backend chardev aggregator

2025-02-03 13:57:08 +04:00

meson.build

chardev/char-hub: implement backend chardev aggregator

2025-02-03 13:57:08 +04:00

msmouse.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00

spice.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00

testdev.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00

trace-events

chardev: add tracing of socket error conditions

2024-07-24 10:39:10 +01:00

trace.h

trace: switch position of headers to what Meson requires

2020-08-21 06:18:24 -04:00

wctablet.c

qom: Have class_init() take a const data argument

2025-04-25 17:00:41 +02:00