diff --git a/common/common.cpp b/common/common.cpp
index a9c7813f7..916b1731e 100644
--- a/common/common.cpp
+++ b/common/common.cpp
@@ -673,17 +673,8 @@ std::vector<llama_arg> gpt_params_parser_init(gpt_params & params, llama_example
      * - if LLAMA_EXAMPLE_* is set (other than COMMON), we only show the option in the corresponding example
      * - if both {LLAMA_EXAMPLE_COMMON, LLAMA_EXAMPLE_*,} are set, we will prioritize the LLAMA_EXAMPLE_* matching current example
      */
-    std::unordered_set<std::string> seen_args;
     auto add_opt = [&](llama_arg arg) {
         if (arg.in_example(ex) || arg.in_example(LLAMA_EXAMPLE_COMMON)) {
-            // make sure there is no argument duplications
-            for (const auto & a : arg.args) {
-                if (seen_args.find(a) == seen_args.end()) {
-                    seen_args.insert(a);
-                } else {
-                    throw std::runtime_error(format("found duplicated argument in source code: %s", a));
-                }
-            }
             options.push_back(std::move(arg));
         }
     };
@@ -790,8 +781,7 @@ std::vector<llama_arg> gpt_params_parser_init(gpt_params & params, llama_example
     add_opt(llama_arg(
         {"-C", "--cpu-mask"}, "M",
         "CPU affinity mask: arbitrarily long hex. Complements cpu-range (default: \"\")",
-        [](gpt_params & params, const std::string & value) {
-            std::string mask = value;
+        [](gpt_params & params, const std::string & mask) {
             params.cpuparams.mask_valid = true;
             if (!parse_cpu_mask(mask, params.cpuparams.cpumask)) {
                 throw std::invalid_argument("invalid cpumask");
@@ -801,8 +791,7 @@ std::vector<llama_arg> gpt_params_parser_init(gpt_params & params, llama_example
     add_opt(llama_arg(
         {"-Cr", "--cpu-range"}, "lo-hi",
         "range of CPUs for affinity. Complements --cpu-mask",
-        [](gpt_params & params, const std::string & value) {
-            std::string range = value;
+        [](gpt_params & params, const std::string & range) {
             params.cpuparams.mask_valid = true;
             if (!parse_cpu_range(range, params.cpuparams.cpumask)) {
                 throw std::invalid_argument("invalid range");
@@ -816,6 +805,16 @@ std::vector<llama_arg> gpt_params_parser_init(gpt_params & params, llama_example
             params.cpuparams.strict_cpu = std::stoul(value);
         }
     ));
+    add_opt(llama_arg(
+        {"--prio"}, "N",
+        format("set process/thread priority : 0-normal, 1-medium, 2-high, 3-realtime (default: %d)\n", params.cpuparams.priority),
+        [](gpt_params & params, int prio) {
+            if (prio < 0 || prio > 3) {
+                throw std::invalid_argument("invalid value");
+            }
+            params.cpuparams.priority = (enum ggml_sched_priority) prio;
+        }
+    ));
     add_opt(llama_arg(
         {"--poll"}, "<0...100>",
         format("use polling level to wait for work (0 - no polling, default: %u)\n", (unsigned) params.cpuparams.poll),
@@ -826,8 +825,7 @@ std::vector<llama_arg> gpt_params_parser_init(gpt_params & params, llama_example
     add_opt(llama_arg(
         {"-Cb", "--cpu-mask-batch"}, "M",
         "CPU affinity mask: arbitrarily long hex. Complements cpu-range-batch (default: same as --cpu-mask)",
-        [](gpt_params & params, const std::string & value) {
-            std::string mask = value;
+        [](gpt_params & params, const std::string & mask) {
             params.cpuparams_batch.mask_valid = true;
             if (!parse_cpu_mask(mask, params.cpuparams_batch.cpumask)) {
                 throw std::invalid_argument("invalid cpumask");
@@ -837,8 +835,7 @@ std::vector<llama_arg> gpt_params_parser_init(gpt_params & params, llama_example
     add_opt(llama_arg(
         {"-Crb", "--cpu-range-batch"}, "lo-hi",
         "ranges of CPUs for affinity. Complements --cpu-mask-batch",
-        [](gpt_params & params, const std::string & value) {
-            std::string range = value;
+        [](gpt_params & params, const std::string & range) {
             params.cpuparams_batch.mask_valid = true;
             if (!parse_cpu_range(range, params.cpuparams_batch.cpumask)) {
                 throw std::invalid_argument("invalid range");
@@ -852,6 +849,16 @@ std::vector<llama_arg> gpt_params_parser_init(gpt_params & params, llama_example
             params.cpuparams_batch.strict_cpu = value;
         }
     ));
+    add_opt(llama_arg(
+        {"--prio-batch"}, "N",
+        format("set process/thread priority : 0-normal, 1-medium, 2-high, 3-realtime (default: %d)\n", params.cpuparams_batch.priority),
+        [](gpt_params & params, int prio) {
+            if (prio < 0 || prio > 3) {
+                throw std::invalid_argument("invalid value");
+            }
+            params.cpuparams_batch.priority = (enum ggml_sched_priority) prio;
+        }
+    ));
     add_opt(llama_arg(
         {"--poll-batch"}, "<0|1>",
         "use polling to wait for work (default: same as --poll)",
@@ -862,8 +869,7 @@ std::vector<llama_arg> gpt_params_parser_init(gpt_params & params, llama_example
     add_opt(llama_arg(
         {"-Cd", "--cpu-mask-draft"}, "M",
         "Draft model CPU affinity mask. Complements cpu-range-draft (default: same as --cpu-mask)",
-        [](gpt_params & params, const std::string & value) {
-            std::string mask = value;
+        [](gpt_params & params, const std::string & mask) {
             params.draft_cpuparams.mask_valid = true;
             if (!parse_cpu_mask(mask, params.draft_cpuparams.cpumask)) {
                 throw std::invalid_argument("invalid cpumask");
@@ -873,8 +879,7 @@ std::vector<llama_arg> gpt_params_parser_init(gpt_params & params, llama_example
     add_opt(llama_arg(
         {"-Crd", "--cpu-range-draft"}, "lo-hi",
         "Ranges of CPUs for affinity. Complements --cpu-mask-draft",
-        [](gpt_params & params, const std::string & value) {
-            std::string range = value;
+        [](gpt_params & params, const std::string & range) {
             params.draft_cpuparams.mask_valid = true;
             if (!parse_cpu_range(range, params.draft_cpuparams.cpumask)) {
                 throw std::invalid_argument("invalid range");
@@ -888,6 +893,16 @@ std::vector<llama_arg> gpt_params_parser_init(gpt_params & params, llama_example
             params.draft_cpuparams.strict_cpu = value;
         }
     ).set_examples({LLAMA_EXAMPLE_SPECULATIVE}));
+    add_opt(llama_arg(
+        {"--prio-draft"}, "N",
+        format("set draft process/thread priority : 0-normal, 1-medium, 2-high, 3-realtime (default: %d)\n", params.draft_cpuparams.priority),
+        [](gpt_params & params, int prio) {
+            if (prio < 0 || prio > 3) {
+                throw std::invalid_argument("invalid value");
+            }
+            params.draft_cpuparams.priority = (enum ggml_sched_priority) prio;
+        }
+    ).set_examples({LLAMA_EXAMPLE_SPECULATIVE}));
     add_opt(llama_arg(
         {"--poll-draft"}, "<0|1>",
         "Use polling to wait for draft model work (default: same as --poll])",
@@ -895,11 +910,20 @@ std::vector<llama_arg> gpt_params_parser_init(gpt_params & params, llama_example
             params.draft_cpuparams.poll = value;
         }
     ).set_examples({LLAMA_EXAMPLE_SPECULATIVE}));
+    add_opt(llama_arg(
+        {"-Cbd", "--cpu-mask-batch-draft"}, "M",
+        "Draft model CPU affinity mask. Complements cpu-range-draft (default: same as --cpu-mask)",
+        [](gpt_params & params, const std::string & mask) {
+            params.draft_cpuparams_batch.mask_valid = true;
+            if (!parse_cpu_mask(mask, params.draft_cpuparams_batch.cpumask)) {
+                throw std::invalid_argument("invalid cpumask");
+            }
+        }
+    ).set_examples({LLAMA_EXAMPLE_SPECULATIVE}));
     add_opt(llama_arg(
         {"-Crbd", "--cpu-range-batch-draft"}, "lo-hi",
         "Ranges of CPUs for affinity. Complements --cpu-mask-draft-batch)",
-        [](gpt_params & params, const std::string & value) {
-            std::string range = value;
+        [](gpt_params & params, const std::string & range) {
             params.draft_cpuparams_batch.mask_valid = true;
             if (!parse_cpu_range(range, params.draft_cpuparams_batch.cpumask)) {
                 throw std::invalid_argument("invalid cpumask");
@@ -913,6 +937,16 @@ std::vector<llama_arg> gpt_params_parser_init(gpt_params & params, llama_example
             params.draft_cpuparams_batch.strict_cpu = value;
         }
     ).set_examples({LLAMA_EXAMPLE_SPECULATIVE}));
+    add_opt(llama_arg(
+        {"--prio-batch-draft"}, "N",
+        format("set draft process/thread priority : 0-normal, 1-medium, 2-high, 3-realtime (default: %d)\n", params.draft_cpuparams_batch.priority),
+        [](gpt_params & params, int prio) {
+            if (prio < 0 || prio > 3) {
+                throw std::invalid_argument("invalid value");
+            }
+            params.draft_cpuparams_batch.priority = (enum ggml_sched_priority) prio;
+        }
+    ).set_examples({LLAMA_EXAMPLE_SPECULATIVE}));
     add_opt(llama_arg(
         {"--poll-batch-draft"}, "<0|1>",
         "Use polling to wait for draft model work (default: --poll-draft)",
@@ -1124,21 +1158,21 @@ std::vector<llama_arg> gpt_params_parser_init(gpt_params & params, llama_example
         [](gpt_params & params) {
             params.interactive = true;
         }
-    ).set_examples({LLAMA_EXAMPLE_INFILL}));
+    ).set_examples({LLAMA_EXAMPLE_MAIN}));
     add_opt(llama_arg(
         {"-if", "--interactive-first"},
         format("run in interactive mode and wait for input right away (default: %s)", params.interactive_first ? "true" : "false"),
         [](gpt_params & params) {
             params.interactive_first = true;
         }
-    ).set_examples({LLAMA_EXAMPLE_INFILL}));
+    ).set_examples({LLAMA_EXAMPLE_MAIN}));
     add_opt(llama_arg(
         {"-mli", "--multiline-input"},
         "allows you to write or paste multiple lines without ending each in '\\'",
         [](gpt_params & params) {
             params.multiline_input = true;
         }
-    ).set_examples({LLAMA_EXAMPLE_INFILL}));
+    ).set_examples({LLAMA_EXAMPLE_MAIN}));
     add_opt(llama_arg(
         {"--in-prefix-bos"},
         "prefix BOS to user inputs, preceding the `--in-prefix` string",
@@ -1146,7 +1180,7 @@ std::vector<llama_arg> gpt_params_parser_init(gpt_params & params, llama_example
             params.input_prefix_bos = true;
             params.enable_chat_template = false;
         }
-    ).set_examples({LLAMA_EXAMPLE_INFILL}));
+    ).set_examples({LLAMA_EXAMPLE_MAIN}));
     add_opt(llama_arg(
         {"--in-prefix"}, "STRING",
         "string to prefix user inputs with (default: empty)",
@@ -1154,7 +1188,7 @@ std::vector<llama_arg> gpt_params_parser_init(gpt_params & params, llama_example
             params.input_prefix = value;
             params.enable_chat_template = false;
         }
-    ).set_examples({LLAMA_EXAMPLE_INFILL}));
+    ).set_examples({LLAMA_EXAMPLE_MAIN}));
     add_opt(llama_arg(
         {"--in-suffix"}, "STRING",
         "string to suffix after user inputs with (default: empty)",
@@ -1162,7 +1196,7 @@ std::vector<llama_arg> gpt_params_parser_init(gpt_params & params, llama_example
             params.input_suffix = value;
             params.enable_chat_template = false;
         }
-    ).set_examples({LLAMA_EXAMPLE_INFILL}));
+    ).set_examples({LLAMA_EXAMPLE_MAIN}));
     add_opt(llama_arg(
         {"--no-warmup"},
         "skip warming up the model with an empty run",
@@ -1499,7 +1533,7 @@ std::vector<llama_arg> gpt_params_parser_init(gpt_params & params, llama_example
         }
     ));
     add_opt(llama_arg(
-        {"--all-logits"},
+        {"--perplexity", "--all-logits"},
         format("return logits for all tokens in the batch (default: %s)", params.logits_all ? "true" : "false"),
         [](gpt_params & params) {
             params.logits_all = true;
@@ -1554,6 +1588,13 @@ std::vector<llama_arg> gpt_params_parser_init(gpt_params & params, llama_example
             params.kl_divergence = true;
         }
     ).set_examples({LLAMA_EXAMPLE_PERPLEXITY}));
+    add_opt(llama_arg(
+        {"--save-all-logits", "--kl-divergence-base"}, "FNAME",
+        "set logits file",
+        [](gpt_params & params, const std::string & value) {
+            params.logits_file = value;
+        }
+    ).set_examples({LLAMA_EXAMPLE_PERPLEXITY}));
     add_opt(llama_arg(
         {"--ppl-stride"}, "N",
         format("stride for perplexity calculation (default: %d)", params.ppl_stride),
@@ -1802,7 +1843,7 @@ std::vector<llama_arg> gpt_params_parser_init(gpt_params & params, llama_example
         [](gpt_params & params, const std::string & value) {
             params.model_alias = value;
         }
-    ).set_examples({LLAMA_EXAMPLE_SERVER}).set_env("LLAMA_ARG_MODEL"));
+    ).set_examples({LLAMA_EXAMPLE_SERVER}));
     add_opt(llama_arg(
         {"-m", "--model"}, "FNAME",
         ex == LLAMA_EXAMPLE_EXPORT_LORA
@@ -1890,7 +1931,7 @@ std::vector<llama_arg> gpt_params_parser_init(gpt_params & params, llama_example
         }
     ).set_examples({LLAMA_EXAMPLE_PASSKEY}));
     add_opt(llama_arg(
-        {"-o", "--output"}, "FNAME",
+        {"-o", "--output", "--output-file"}, "FNAME",
         format("output file (default: '%s')",
             ex == LLAMA_EXAMPLE_EXPORT_LORA
                 ? params.lora_outfile.c_str()
@@ -1932,7 +1973,7 @@ std::vector<llama_arg> gpt_params_parser_init(gpt_params & params, llama_example
         }
     ).set_examples({LLAMA_EXAMPLE_IMATRIX}));
     add_opt(llama_arg(
-        {"--chunk"}, "N",
+        {"--chunk", "--from-chunk"}, "N",
         format("start processing the input from chunk N (default: %d)", params.i_chunk),
         [](gpt_params & params, int value) {
             params.i_chunk = value;
@@ -2057,7 +2098,7 @@ std::vector<llama_arg> gpt_params_parser_init(gpt_params & params, llama_example
         }
     ).set_examples({LLAMA_EXAMPLE_SERVER}));
     add_opt(llama_arg(
-        {"--timeout"}, "N",
+        {"-to", "--timeout"}, "N",
         format("server read/write timeout in seconds (default: %d)", params.timeout_read),
         [](gpt_params & params, int value) {
             params.timeout_read  = value;
diff --git a/common/common.h b/common/common.h
index d7c08f20a..5b945ac02 100644
--- a/common/common.h
+++ b/common/common.h
@@ -211,7 +211,6 @@ struct gpt_params {
     bool use_mlock         = false; // use mlock to keep model in memory
     bool verbose_prompt    = false; // print prompt tokens before generation
     bool display_prompt    = true;  // print prompt before generation
-    bool infill            = false; // use infill mode
     bool dump_kv_cache     = false; // dump the KV cache contents for debugging purposes
     bool no_kv_offload     = false; // disable KV offloading
     bool warmup            = true;  // warmup run
diff --git a/examples/infill/infill.cpp b/examples/infill/infill.cpp
index d06071377..87abb761f 100644
--- a/examples/infill/infill.cpp
+++ b/examples/infill/infill.cpp
@@ -306,11 +306,6 @@ int main(int argc, char ** argv) {
     LOG_TEE("\n\n");
 
     LOG_TEE("\n#####  Infill mode  #####\n\n");
-    if (params.infill) {
-        printf("\n************\n");
-        printf("no need to specify '--infill', always running infill\n");
-        printf("************\n\n");
-    }
     if (params.interactive) {
         const char *control_message;
         if (params.multiline_input) {
diff --git a/tests/test-arg-parser.cpp b/tests/test-arg-parser.cpp
index 8852bfc7e..9ad91acc0 100644
--- a/tests/test-arg-parser.cpp
+++ b/tests/test-arg-parser.cpp
@@ -1,6 +1,7 @@
 #include <string>
 #include <vector>
 #include <sstream>
+#include <unordered_set>
 
 #undef NDEBUG
 #include <cassert>
@@ -13,7 +14,29 @@ int main(void) {
     printf("test-arg-parser: make sure there is no duplicated arguments in any examples\n\n");
     for (int ex = 0; ex < LLAMA_EXAMPLE_COUNT; ex++) {
         try {
-            gpt_params_parser_init(params, (enum llama_example)ex);
+            auto options = gpt_params_parser_init(params, (enum llama_example)ex);
+            std::unordered_set<std::string> seen_args;
+            std::unordered_set<std::string> seen_env_vars;
+            for (const auto & opt : options) {
+                // check for args duplications
+                for (const auto & arg : opt.args) {
+                    if (seen_args.find(arg) == seen_args.end()) {
+                        seen_args.insert(arg);
+                    } else {
+                        fprintf(stderr, "test-arg-parser: found different handlers for the same argument: %s", arg);
+                        exit(1);
+                    }
+                }
+                // check for env var duplications
+                if (opt.env) {
+                    if (seen_env_vars.find(opt.env) == seen_env_vars.end()) {
+                        seen_env_vars.insert(opt.env);
+                    } else {
+                        fprintf(stderr, "test-arg-parser: found different handlers for the same env var: %s", opt.env);
+                        exit(1);
+                    }
+                }
+            }
         } catch (std::exception & e) {
             printf("%s\n", e.what());
             assert(false);