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Increase decoding chunk size for much better performance.
[pulseview.git]
/
pv
/
data
/
decoderstack.cpp
diff --git
a/pv/data/decoderstack.cpp
b/pv/data/decoderstack.cpp
index 2b07936840f49df3d76160f2b6250ed051278003..c216d8d2627344264d940e4ab7a8d1a3db26c6d5 100644
(file)
--- a/
pv/data/decoderstack.cpp
+++ b/
pv/data/decoderstack.cpp
@@
-53,7
+53,7
@@
namespace data {
const double DecoderStack::DecodeMargin = 1.0;
const double DecoderStack::DecodeThreshold = 0.2;
const double DecoderStack::DecodeMargin = 1.0;
const double DecoderStack::DecodeThreshold = 0.2;
-const int64_t DecoderStack::DecodeChunkLength =
4096
;
+const int64_t DecoderStack::DecodeChunkLength =
10 * 1024 * 1024
;
const unsigned int DecoderStack::DecodeNotifyPeriod = 1024;
mutex DecoderStack::global_srd_mutex_;
const unsigned int DecoderStack::DecodeNotifyPeriod = 1024;
mutex DecoderStack::global_srd_mutex_;
@@
-301,20
+301,18
@@
optional<int64_t> DecoderStack::wait_for_data() const
}
void DecoderStack::decode_data(
}
void DecoderStack::decode_data(
- const int64_t sample_count, const unsigned int unit_size,
+ const int64_t
abs_start_samplenum, const int64_t
sample_count, const unsigned int unit_size,
srd_session *const session)
{
srd_session *const session)
{
- uint8_t chunk[DecodeChunkLength];
-
const unsigned int chunk_sample_count =
DecodeChunkLength / segment_->unit_size();
const unsigned int chunk_sample_count =
DecodeChunkLength / segment_->unit_size();
- for (int64_t i =
0
; !interrupt_ && i < sample_count;
+ for (int64_t i =
abs_start_samplenum
; !interrupt_ && i < sample_count;
i += chunk_sample_count) {
const int64_t chunk_end = min(
i + chunk_sample_count, sample_count);
i += chunk_sample_count) {
const int64_t chunk_end = min(
i + chunk_sample_count, sample_count);
-
segment_->get_samples(chunk,
i, chunk_end);
+
const uint8_t* chunk = segment_->get_samples(
i, chunk_end);
if (srd_session_send(session, i, chunk_end, chunk,
(chunk_end - i) * unit_size, unit_size) != SRD_OK) {
if (srd_session_send(session, i, chunk_end, chunk,
(chunk_end - i) * unit_size, unit_size) != SRD_OK) {
@@
-382,8
+380,10
@@
void DecoderStack::decode_proc()
srd_session_start(session);
srd_session_start(session);
+ int64_t abs_start_samplenum = 0;
do {
do {
- decode_data(*sample_count, unit_size, session);
+ decode_data(abs_start_samplenum, *sample_count, unit_size, session);
+ abs_start_samplenum = *sample_count;
} while (error_message_.isEmpty() && (sample_count = wait_for_data()));
// Destroy the session
} while (error_message_.isEmpty() && (sample_count = wait_for_data()));
// Destroy the session