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Rename variable for code clarity 

When tracking IO timing for WAL, the duration is what we calculate
based on the start and end timestamps, it's not what the variable
contains. Rename the timestamp variable to end to better communicate
what it contains.  Original patch by Krishnakumar with additional
hacking to fix another occurrence by me.

Author: Krishnakumar R <kksrcv001@gmail.com>
Discussion: https://postgr.es/m/CAPMWgZ9f9o8awrQpjo8oxnNQ=bMDVPx00NE0QcDzvHD_ZrdLPw@mail.gmail.com
This commit is contained in:
Daniel Gustafsson 2023-09-15 19:05:57 +02:00
parent 18724af9e8
commit a396e20ad0
1 changed files with 6 additions and 6 deletions
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12
src/backend/access/transam/xlog.c
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@ -2226,10 +2226,10 @@ XLogWrite(XLogwrtRqst WriteRqst, TimeLineID tli, bool flexible)
*/
if (track_wal_io_timing)
{
instr_time duration;
instr_time end;
INSTR_TIME_SET_CURRENT(duration);
INSTR_TIME_ACCUM_DIFF(PendingWalStats.wal_write_time, duration, start);
INSTR_TIME_SET_CURRENT(end);
INSTR_TIME_ACCUM_DIFF(PendingWalStats.wal_write_time, end, start);
}
PendingWalStats.wal_write++;
@ -8252,10 +8252,10 @@ issue_xlog_fsync(int fd, XLogSegNo segno, TimeLineID tli)
*/
if (track_wal_io_timing)
{
instr_time duration;
instr_time end;
INSTR_TIME_SET_CURRENT(duration);
INSTR_TIME_ACCUM_DIFF(PendingWalStats.wal_sync_time, duration, start);
INSTR_TIME_SET_CURRENT(end);
INSTR_TIME_ACCUM_DIFF(PendingWalStats.wal_sync_time, end, start);
}
PendingWalStats.wal_sync++;