curl_easy_getinfo.3: clarify some timing info

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.\" * Copyright (C) 1998 - 2010, Daniel Stenberg, <daniel@haxx.se>, et al.

.\" * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.

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Pass a pointer to a double to receive the time, in seconds, it took from the

start until the file transfer is just about to begin. This includes all

pre-transfer commands and negotiations that are specific to the particular

protocol(s) involved.

protocol(s) involved. It does \fInot\fP involve the sending of the protocol-

specific request that triggers a transfer.

.IP CURLINFO_STARTTRANSFER_TIME

Pass a pointer to a double to receive the time, in seconds, it took from the

start until the first byte is just about to be transferred. This includes

CURLINFO_PRETRANSFER_TIME and also the time the server needs to calculate

the result.

start until the first byte is received by libcurl. This includes

CURLINFO_PRETRANSFER_TIME and also the time the server needs to calculate the

result.

.IP CURLINFO_REDIRECT_TIME

Pass a pointer to a double to receive the total time, in seconds, it took for

all redirection steps include name lookup, connect, pretransfer and transfer

and negotiations that are specific to the particular protocol(s) involved.

.IP STARTTRANSFER

\fICURLINFO_STARTTRANSFER_TIME\fP. The time it took from the start until the

first byte is just about to be transferred.

first byte is received by libcurl.

.IP TOTAL

\fICURLINFO_TOTAL_TIME\fP. Total time of the previous request.

.IP REDIRECT