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perf: downsized test data, increased SSH socket buffer, and made chunk size configurable

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- Reduced test data from 50MB to 25MB (test.py)
- Increased SSH socketpair buffer to 1MB via setsockopt (transport_ssh.c)
- Made chunk size configurable: new Config field, --chunk-size CLI flag,
  sent over wire, and used in scanner instead of DESIRED_CHUNK_SIZE
- Fixed DESIRED_CHUNK_SIZE macro parentheses (chunk.h)
This commit is contained in:
TapTap
2026-07-16 12:20:02 +02:00
parent 270623b90e
commit ca29109664
11 changed files with 41 additions and 20 deletions
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src/shared/config.c
+5 -1
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@@ -10,7 +10,8 @@ Config *config_create(char *version, char *send_directory,
char *receive_directory, bool save_to_disk,
bool use_multithreading, bool use_chunk_serialization,
bool use_compression, bool use_metadata,
int compression_level, bool use_sendfile) {
int compression_level, bool use_sendfile,
unsigned long long chunk_size) {
Config *config = malloc(sizeof(Config));
config->version = version;
@@ -23,6 +24,7 @@ Config *config_create(char *version, char *send_directory,
config->use_metadata = use_metadata;
config->compression_level = compression_level;
config->use_sendfile = use_sendfile;
config->chunk_size = chunk_size > 0 ? chunk_size : DEFAULT_CHUNK_SIZE;
config->transport = TRANSPORT_TCP;
config->ssh_destination = NULL;
return config;
@@ -67,6 +69,7 @@ void config_send(int file_descriptor, Config *config) {
send_int(file_descriptor, config->use_compression);
send_int(file_descriptor, config->use_metadata);
send_int(file_descriptor, config->compression_level);
send_int(file_descriptor, (int)config->chunk_size);
send_int(file_descriptor, config->use_sendfile);
if (receive_status(file_descriptor) != STATUS_OK) {
perror("Error transmitting config!");
@@ -85,6 +88,7 @@ Config *config_receive(int file_descriptor) {
config->use_compression = receive_int(file_descriptor);
config->use_metadata = receive_int(file_descriptor);
config->compression_level = receive_int(file_descriptor);
config->chunk_size = (unsigned long long)receive_int(file_descriptor);
config->use_sendfile = receive_int(file_descriptor);
config->transport = TRANSPORT_TCP;
config->ssh_destination = NULL;