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increase kMaxValueLength to 8192 #27521

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Merged
tianleiwu merged 3 commits into from
Mar 4, 2026
Merged

increase kMaxValueLength to 8192 #27521

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d468c51
increase kMaxValueLength to 8192
Mar 3, 2026
d7cf698
apply suggestion
Mar 3, 2026
0ae05ff
bug fix
Mar 3, 2026
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2 changes: 1 addition & 1 deletion include/onnxruntime/core/session/onnxruntime_session_options_config_keys.h
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Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,7 @@
* The maximum length of the Config Key is 1024
*
* The string format of a SessionOptions Config Value is defined individually for each Config.
* The maximum length of the Config Value is 2048
* The maximum length of the Config Value is 8192
*/

// Key for disable PrePacking,
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2 changes: 1 addition & 1 deletion onnxruntime/core/framework/config_options.h
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Expand Up @@ -18,7 +18,7 @@ struct ConfigOptions {
// Maximum key/value string lengths specified in
// core/session/onnxruntime_session_options_config_keys.h
static constexpr size_t kMaxKeyLength = 1024;
static constexpr size_t kMaxValueLength = 4096;
static constexpr size_t kMaxValueLength = 8192;

std::unordered_map<std::string, std::string> configurations;

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3 changes: 2 additions & 1 deletion onnxruntime/test/shared_lib/test_session_options.cc
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Expand Up @@ -2,6 +2,7 @@
// Licensed under the MIT License.

#include "core/common/common.h"
#include "core/framework/config_options.h"
#include "core/graph/constants.h"
#include "core/session/onnxruntime_cxx_api.h"
#include "core/session/onnxruntime_session_options_config_keys.h"
Expand All @@ -25,7 +26,7 @@ TEST(CApiTest, session_options_deterministic_compute) {

TEST(CApiTest, session_options_oversized_affinity_string) {
Ort::SessionOptions options;
std::string long_affinity_str(onnxruntime::kMaxStrLen + 1, '0');
std::string long_affinity_str(ConfigOptions::kMaxValueLength + 1, '0');
try {
options.AddConfigEntry(kOrtSessionOptionsConfigIntraOpThreadAffinities, long_affinity_str.c_str());
ASSERT_TRUE(false) << "Creation of config should have thrown exception";
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