Ed Barlow createdImage may be NSFW.
Clik here to view.
the sp__monwaits stored procedure for displaying the wait times since server start in Sybase ASE as part of the excellent Extended Stored Procedures by Ed Barlow (AKA the Ed Barlow Stored Procedures).
The sp__monwaits often truncated the event description making it rather difficult to determine exactly which event occurred. I’ve expanded the size the field to reflect the length of the longest event description dynamically.
Event WaitTime Waits ---------------------------------------- ----------- ----------- xact coord: pause during idle loop 4001410 66688 wait for buffer read to complete 532248 85475068 wait for buffer write to complete 32235 15923057 wait for buffer validation to complete 3680 162024 wait for mass to stop changing 30267 10315571 wait for mass to finish changing 10774 502746724 wait to acquire latch 55839 7807761 waiting for disk write to complete 115108 40656343 waiting for disk write to complete 60530 11697654 waiting for disk write to complete 27566 9398819 waiting for disk write to complete 85976 50951106 checkpoint process idle loop 951594 16619 hk: pause for some time 2713933 530621 wait for flusher to queue full DFLPIECE 151633 150265 wait for data from client 1933 6000 wait until an engine has been offlined 1000427 33342 wait for someone else to finish reading 372601 55500541 waiting for semaphore 391902 13636318 waiting for CTLIB event to complete 87265 112396697 waiting while allocating new client sock 997833 97155 waiting while no network read or write i 11936037 1037354467 waiting on run queue after yield 295191 72098512 waiting on run queue after sleep 746636 -1313156962 replication agent sleeping in retry slee 3839 64 replication agent sleeping during flush 1840806 12733523 waiting for incoming network data 201256524 265587239 waiting for network send to complete 1175318 747115161 waiting until last chance threshold is c 1144 3 waiting for date or time in waitfor comm 68630 210
to
Event WaitTime Waits -------------------------------------------------- ----------- ----------- waiting for incoming network data 221594153 12452930 waiting for client connection request 2760845 207231 hk: pause for some time 2754002 443443 xact coord: pause during idle loop 920462 15341 wait until an engine has been offlined 920462 30682 Wait until heartbeat or check interval expires 920399 1534 checkpoint process idle loop 919400 18224 replication agent sleeping during flush 777679 91871 replication agent sleeping in retry sleep 138301 2305 wait for flusher to queue full DFLPIECE 31029 31055 waiting for regular buffer read to complete 11461 37289445 waiting for last i/o on MASS to complete 8079 2026180 waiting on run queue after yield 4914 4974455 waiting on run queue after sleep 3652 71141496 wait for mass read to finish when getting page 3341 5365397 wait for i/o to finish after writing last log page 2757 3624230 waiting for network send to complete 1404 58634 waiting for buf write to complete before writing 1334 1452867
Differences:
$ diff sp__monwaits.old sp__monwaits.15
1,13d0
< <
< /*
< select distinct SPID,Id=substring(Login+"("+Application+")",1,30),SecondsWaiting=sum(SecondsWaiting),"Non Network Wait Reason"=c.Description
< from master..monProcess p,master..monWaitClassInfo c, master..monWaitEventInfo i
< where p.WaitEventID = i.WaitEventID
< and i.WaitClassID = c.WaitClassID
< and c.Description!="waiting for input from the network"
< group by c.WaitClassID,SPID
< order by SPID
< */
<
<
22d8
<
32a19,21
> declare @max_eventstr_size varchar(4)
> declare @exec_str varchar(2000)
>
34c23,25
< select "Event"=substring(i.Description,1,40),WaitTime,Waits
---
> begin
> select "Event" = i.Description, WaitTime, Waits
> into #tmp_nodelay
37a29,42
>
> if @dont_format is null
> begin
> select @max_eventstr_size = convert(varchar(3), isnull(max(char_length(Event)), 1)) from #tmp_nodelay
> select @exec_str = 'select "Event" = convert(varchar(' + @max_eventstr_size + '), Event), WaitTime, Waits from #tmp_nodelay order by WaitTime desc'
> exec (@exec_str)
> end
> else
> begin
> select * from #tmp_nodelay order by WaitTime desc
> end
>
> delete #tmp_nodelay
> end
40c45
< select "Event"=substring(i.Description,1,40),WaitTime,Waits,s.WaitEventID
---
> select "Event" = i.Description, WaitTime, Waits, s.WaitEventID
51a57
>
56,63c62
< select "Time"=convert(varchar(8),getdate(),8),
< "Event"=i.Event,
< WaitTime=s.WaitTime-i.WaitTime,
< Waits=s.Waits-i.Waits
< from #tmp i, master..monSysWaits s
< where (s.WaitTime>i.WaitTime or s.Waits>i.Waits)
< and s.WaitEventID= i.WaitEventID
< order by WaitTime desc
---
> select @max_eventstr_size = convert(varchar(3), isnull(max(char_length(Event)), 1)) from #tmp
64a64,73
> select @exec_str = 'select "Time" = convert(varchar(8),getdate(),8),
> "Event" = convert(varchar(' + @max_eventstr_size + '), rtrim(i.Event)),
> WaitTime = s.WaitTime-i.WaitTime,
> Waits = s.Waits-i.Waits
> from #tmp i, master..monSysWaits s
> where (s.WaitTime > i.WaitTime or s.Waits > i.Waits)
> and s.WaitEventID= i.WaitEventID
> order by WaitTime desc'
> exec (@exec_str)
>
68c77
< select "Event"=substring(i.Description,1,40),WaitTime,Waits,s.WaitEventID
---
> select "Event"=i.Description, WaitTime, Waits, s.WaitEventID
70c79
< where s.WaitEventID= i.WaitEventID
---
> where s.WaitEventID = i.WaitEventID
Full SQL text of sp__monwaits:
use sybsystemprocs
go
/* Procedure library copyright(c) 2004 by Edward M Barlow */
IF EXISTS (SELECT * FROM sysobjects
WHERE name = "sp__monwaits"
AND type = "P")
DROP PROC sp__monwaits
go
CREATE PROC sp__monwaits(
@num_sec_delay int=NULL,
@num_iter int=NULL,
@dont_format char(1)=NULL)
AS
set nocount on
declare @delay char(8)
declare @max_eventstr_size varchar(4)
declare @exec_str varchar(2000)
if @num_sec_delay is null
begin
select "Event" = i.Description, WaitTime, Waits
into #tmp_nodelay
from master..monWaitEventInfo i, master..monSysWaits s
where s.WaitEventID= i.WaitEventID
and WaitTime>1000
if @dont_format is null
begin
select @max_eventstr_size = convert(varchar(3), isnull(max(char_length(Event)), 1)) from #tmp_nodelay
select @exec_str = 'select "Event" = convert(varchar(' + @max_eventstr_size + '), Event), WaitTime, Waits from #tmp_nodelay order by WaitTime desc'
exec (@exec_str)
end
else
begin
select * from #tmp_nodelay order by WaitTime desc
end
delete #tmp_nodelay
end
else
begin
select "Event" = i.Description, WaitTime, Waits, s.WaitEventID
into #tmp
from master..monWaitEventInfo i, master..monSysWaits s
where s.WaitEventID= i.WaitEventID
if @num_sec_delay<10
select @delay="00:00:0"+convert(char(1),@num_sec_delay)
else
select @delay="00:00:"+convert(char(2),@num_sec_delay)
if @num_iter is null
select @num_iter=100
while @num_iter>0
begin
waitfor delay @delay
select @max_eventstr_size = convert(varchar(3), isnull(max(char_length(Event)), 1)) from #tmp
select @exec_str = 'select "Time" = convert(varchar(8),getdate(),8),
"Event" = convert(varchar(' + @max_eventstr_size + '), rtrim(i.Event)),
WaitTime = s.WaitTime-i.WaitTime,
Waits = s.Waits-i.Waits
from #tmp i, master..monSysWaits s
where (s.WaitTime > i.WaitTime or s.Waits > i.Waits)
and s.WaitEventID= i.WaitEventID
order by WaitTime desc'
exec (@exec_str)
delete #tmp
insert #tmp
select "Event"=i.Description, WaitTime, Waits, s.WaitEventID
from master..monWaitEventInfo i, master..monSysWaits s
where s.WaitEventID = i.WaitEventID
select @num_iter = @num_iter - 1
end
end
return
go
GRANT EXECUTE ON sp__monwaits TO public
go