Hi Ian,
I have tested this at home and found a small error:
| + if (hctx->ccid3hctx_x != old_x) {
| + ccid3_pr_debug("X_prev=%llu, X_now=%llu, X_calc=%u, "
| + "X_recv=%llu\n", old_x, hctx->ccid3hctx_x,
| + hctx->ccid3hctx_x_calc, hctx->ccid3hctx_x_recv);
| ccid3_update_send_time(hctx);
==> old_x, x, and x_recv are all scaled by 2^6 and need to be divided (would
give wrong results).
I have fixed this in the online version
(3c_CCID3_add_more_debugging_McDonald.diff);
the inter-diff between previous and now is (having also updated `x' -> `X' for
consistency):
diff -u b/net/dccp/ccids/ccid3.c b/net/dccp/ccids/ccid3.c
--- b/net/dccp/ccids/ccid3.c
+++ b/net/dccp/ccids/ccid3.c
@@ -100,8 +100,8 @@
hctx->ccid3hctx_delta = min_t(u32, hctx->ccid3hctx_t_ipi / 2,
TFRC_OPSYS_HALF_TIME_GRAN);
- ccid3_pr_debug("t_ipi=%u, delta=%u, s=%u, x=%llu\n",
- hctx->ccid3hctx_t_ipi, hctx->ccid3hctx_delta,
+ ccid3_pr_debug("t_ipi=%u, delta=%u, s=%u, X=%llu\n",
+ hctx->ccid3hctx_t_ipi, hctx->ccid3hctx_delta,
hctx->ccid3hctx_s, hctx->ccid3hctx_x >> 6);
}
@@ -148,8 +148,9 @@
if (hctx->ccid3hctx_x != old_x) {
ccid3_pr_debug("X_prev=%llu, X_now=%llu, X_calc=%u, "
- "X_recv=%llu\n", old_x, hctx->ccid3hctx_x,
- hctx->ccid3hctx_x_calc, hctx->ccid3hctx_x_recv);
+ "X_recv=%llu\n", old_x >> 6, hctx->ccid3hctx_x
>> 6,
+ hctx->ccid3hctx_x_calc, hctx->ccid3hctx_x_recv
>> 6);
+
ccid3_update_send_time(hctx);
}
}
-
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