From d04d99e03990f06420a9eefcbdd2c4889aa9f954 Mon Sep 17 00:00:00 2001
From: ZacharyZcR <zacharyzcr1984@gmail.com>
Date: Wed, 15 Jul 2026 14:31:36 +0800
Subject: [PATCH] =?UTF-8?q?serve:=20print=20the=20KV=20prefix-reuse=20diag?=
 =?UTF-8?q?nostic=20in=20mux=20mode=20too=20=E2=80=94=20[API]=20KV=20slot?=
 =?UTF-8?q?=20line=20existed=20only=20in=20the=20legacy=20\x02PROMPT=20pat?=
 =?UTF-8?q?h=20(#153)?=
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---
 c/glm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/c/glm.c b/c/glm.c
index cea69b7..1e10044 100644
--- a/c/glm.c
+++ b/c/glm.c
@@ -4070,6 +4070,7 @@ static int mux_submit(Model *m, Tok *T, ServeCtx *ctx, ServeReq *req, int nctx,
         kv_disk_truncate(m,sc->len); }
     int add=nt-sc->len;
     if(add>0) memcpy(sc->hist+sc->len,tmp+sc->len,(size_t)add*sizeof(int));
+    fprintf(stderr,"[API] KV slot %d prefix %d/%d token, prefill %d\n",sub.slot,sc->len,nt,add);
     free(tmp);
     float *logit = add>0 ? step(m,sc->hist+sc->len,add,sc->len)
                          : step(m,sc->hist+sc->len-1,1,sc->len-1);