Mail Archives: cygwin/1998/03/24/17:49:43
I have been very interested in the performance of the cygin toolset
specifically the apparent slowness of the system primarily on network
connected disks. This topic (performance) has ocupied a great deal of the
list bandwidth from time to time.
I have now managed to get some measures for a program compiled under
cygwin and msvc++ accessing local and remote drives. The program is
trivial, it hangs around to let loading complete and then opens a file
identified as a parameter, fstats it and then closes it. More than 1 file
can be specified on the input.
The program reports the time taken to complete the actions - using the
rdtsc counter.
This is the results I get running from NT command shell, running the
program twice to the same files
local remote
Microsoft 229226 969880
226628 1058648
cygwin 1298950 3367980
1071340 3664081
All times are in "clock ticks" from rdtsc (233Mhz hence, 4.3ns per tick)
Clearly microsoft wins hands down over cygwin, 5* better for local and 3*
better for remote. An interesting point is that microsoft is 4* worse for
remote than local, cygin is only 3* (starting from behind)
When you look at number of accesses we get a similar picture
local remote
microsoft 5 7
cygwin 32 25
BUT why does cygwin do more accesses to a local file? [I have run these
programs from the NT command prompt to eliminate any bash forking problems]
I hope this is of interest/use.
Kevin
The raw info is here in the following format
sequence time stamp process action path result extra info
For each file there are TWO acceses to the file - in an attempt to
eliminate any initialisation problems
Microsoft - remote
44 2147968219 mtime.exe IRP_MJ_CREATE N:\aas05\novadata\devel\kh\mtime.c
SUCCESS Attributes:0080 Options:01000060
45 2148002871 mtime.exe IRP_MJ_QUERY_VOLUME_INFORMATION N:\aas05\novadat
a\devel\kh\mtime.c SUCCESS FileFsDeviceInformation
46 2148030149 mtime.exe IRP_MJ_QUERY_VOLUME_INFORMATION N:\aas05\novadat
a\devel\kh\mtime.c SUCCESS FileFsDeviceInformation
47 2148158439 mtime.exe IRP_MJ_QUERY_VOLUME_INFORMATION N:\aas05\novadat
a\devel\kh\mtime.c SUCCESS FileFsVolumeInformation
48 2148396673 mtime.exe IRP_MJ_QUERY_INFORMATION N:\aas05\novadata\devel
\kh\mtime.c BUFFER OVERFLOW FileAllInformation
50 2148773269 mtime.exe IRP_MJ_CLEANUP N:\aas05\novadata\devel\kh\mtime.
c SUCCESS
51 2148867271 mtime.exe IRP_MJ_CLOSE N:\aas05\novadata\devel\kh\mtime.c
SUCCESS
52 2149344283 mtime.exe IRP_MJ_CREATE N:\aas05\novadata\devel\kh\mtime.c
SUCCESS Attributes:0080 Options:01000060
53 2149376518 mtime.exe IRP_MJ_QUERY_VOLUME_INFORMATION N:\aas05\novadat
a\devel\kh\mtime.c SUCCESS FileFsDeviceInformation
54 2149395050 mtime.exe IRP_MJ_QUERY_VOLUME_INFORMATION N:\aas05\novadat
a\devel\kh\mtime.c SUCCESS FileFsDeviceInformation
55 2149509675 mtime.exe IRP_MJ_QUERY_VOLUME_INFORMATION N:\aas05\novadat
a\devel\kh\mtime.c SUCCESS FileFsVolumeInformation
56 2149718411 mtime.exe IRP_MJ_QUERY_INFORMATION N:\aas05\novadata\devel
\kh\mtime.c BUFFER OVERFLOW FileAllInformation
57 2149752261 mtime.exe IRP_MJ_CLEANUP N:\aas05\novadata\devel\kh\mtime.
c SUCCESS
58 2149843293 mtime.exe IRP_MJ_CLOSE N:\aas05\novadata\devel\kh\mtime.c
SUCCESS
Microsoft - Local
59 2150057721 mtime.exe IRP_MJ_CREATE C:\msdos.sys SUCCESS Attributes:0080
Options:01000060
60 2150090117 mtime.exe IRP_MJ_QUERY_VOLUME_INFORMATION C:\msdos.sys SUC
CESS FileFsVolumeInformation
61 2150111592 mtime.exe IRP_MJ_QUERY_INFORMATION C:\msdos.sys BUFFER
OVERFLOW FileAllInformation
62 2150139947 mtime.exe IRP_MJ_CLEANUP C:\msdos.sys SUCCESS
63 2150155667 mtime.exe IRP_MJ_CLOSE C:\msdos.sys SUCCESS
64 2150347279 mtime.exe IRP_MJ_CREATE C:\msdos.sys SUCCESS Attributes:0080
Options:01000060
65 2150378302 mtime.exe IRP_MJ_QUERY_VOLUME_INFORMATION C:\msdos.sys SUC
CESS FileFsVolumeInformation
66 2150397019 mtime.exe IRP_MJ_QUERY_INFORMATION C:\msdos.sys BUFFER
OVERFLOW FileAllInformation
67 2150421965 mtime.exe IRP_MJ_CLEANUP C:\msdos.sys SUCCESS
68 2150436143 mtime.exe IRP_MJ_CLOSE C:\msdos.sys SUCCESS
CYGWIN - REMOTE
190 2147641281 a.exe IRP_MJ_CREATE N:\aas05\novadata\devel\kh\mtime.c SU
CCESS Attributes:0000 Options:01000000
191 2147908209 a.exe FASTIO_QUERY_BASIC_INFO N:\aas05\novadata\devel\kh\
mtime.c SUCCESS Attributes:0020
192 2147926338 a.exe IRP_MJ_CLEANUP N:\aas05\novadata\devel\kh\mtime.c S
UCCESS
193 2147943522 a.exe IRP_MJ_CLOSE N:\aas05\novadata\devel\kh\mtime.c SUC
CESS
194 2148507507 a.exe IRP_MJ_CREATE N:\aas05\novadata\devel\kh\mtime.c SU
CCESS Attributes:0080 Options:01000060
195 2148651891 a.exe IRP_MJ_QUERY_VOLUME_INFORMATION N:\aas05\novadata\d
evel\kh\mtime.c SUCCESS FileFsVolumeInformation
196 2148877677 a.exe IRP_MJ_QUERY_INFORMATION N:\aas05\novadata\devel\kh
\mtime.c BUFFER OVERFLOW FileAllInformation
197 2149290037 a.exe IRP_MJ_CREATE N:\aas05\novadata\devel\kh\mtime.c SU
CCESS Attributes:0000 Options:01000000
198 2149423091 a.exe IRP_MJ_QUERY_SECURITY N:\aas05\novadata\devel\kh\mt
ime.c SUCCESS
199 2149449719 a.exe IRP_MJ_CLEANUP N:\aas05\novadata\devel\kh\mtime.c S
UCCESS
200 2149560897 a.exe IRP_MJ_CLOSE N:\aas05\novadata\devel\kh\mtime.c SUC
CESS
201 2149754869 a.exe IRP_MJ_CREATE N:\aas05\novadata\devel\kh\mtime.c SU
CCESS Attributes:0000 Options:01000000
202 2149877367 a.exe IRP_MJ_QUERY_SECURITY N:\aas05\novadata\devel\kh\mt
ime.c SUCCESS
203 2149902269 a.exe IRP_MJ_CLEANUP N:\aas05\novadata\devel\kh\mtime.c S
UCCESS
204 2150010259 a.exe IRP_MJ_CLOSE N:\aas05\novadata\devel\kh\mtime.c SUC
CESS
205 2150206875 a.exe IRP_MJ_CREATE N:\aas05\novadata\devel\kh\mtime.c SU
CCESS Attributes:0000 Options:01000020
206 2150236418 a.exe FASTIO_QUERY_STANDARD_INFO N:\aas05\novadata\devel\
kh\mtime.c SUCCESS Size: 1107
207 2150247883 a.exe FASTIO_QUERY_STANDARD_INFO N:\aas05\novadata\devel\
kh\mtime.c SUCCESS Size: 1107
208 2150423629 a.exe IRP_MJ_QUERY_EA N:\aas05\novadata\devel\kh\mtime.c *
0xC0000052
209 2150551983 a.exe IRP_MJ_QUERY_INFORMATION N:\aas05\novadata\devel\kh
\mtime.c SUCCESS FileStreamInformation
210 2150579901 a.exe IRP_MJ_CLEANUP N:\aas05\novadata\devel\kh\mtime.c S
UCCESS
211 2150687487 a.exe IRP_MJ_CLOSE N:\aas05\novadata\devel\kh\mtime.c SUC
CESS
212 2150710501 a.exe IRP_MJ_QUERY_VOLUME_INFORMATION N:\aas05\novadata\d
evel\kh\mtime.c SUCCESS FileFsDeviceInformation
213 2150739998 a.exe IRP_MJ_CLEANUP N:\aas05\novadata\devel\kh\mtime.c S
UCCESS
214 2150840519 a.exe IRP_MJ_CLOSE N:\aas05\novadata\devel\kh\mtime.c SUC
CESS
215 2151169979 a.exe IRP_MJ_CREATE N:\aas05\novadata\devel\kh\mtime.c SU
CCESS Attributes:0000 Options:01000000
216 2151305059 a.exe FASTIO_QUERY_BASIC_INFO N:\aas05\novadata\devel\kh\
mtime.c SUCCESS Attributes:0020
217 2151319614 a.exe IRP_MJ_CLEANUP N:\aas05\novadata\devel\kh\mtime.c S
UCCESS
218 2151334915 a.exe IRP_MJ_CLOSE N:\aas05\novadata\devel\kh\mtime.c SUC
CESS
219 2151764849 a.exe IRP_MJ_CREATE N:\aas05\novadata\devel\kh\mtime.c SU
CCESS Attributes:0080 Options:01000060
220 2151912315 a.exe IRP_MJ_QUERY_VOLUME_INFORMATION N:\aas05\novadata\d
evel\kh\mtime.c SUCCESS FileFsVolumeInformation
221 2152229739 a.exe IRP_MJ_QUERY_INFORMATION N:\aas05\novadata\devel\kh
\mtime.c BUFFER OVERFLOW FileAllInformation
222 2152623835 a.exe IRP_MJ_CREATE N:\aas05\novadata\devel\kh\mtime.c SU
CCESS Attributes:0000 Options:01000000
223 2152805865 a.exe IRP_MJ_QUERY_SECURITY N:\aas05\novadata\devel\kh\mt
ime.c SUCCESS
224 2152832795 a.exe IRP_MJ_CLEANUP N:\aas05\novadata\devel\kh\mtime.c S
UCCESS
225 2152971619 a.exe IRP_MJ_CLOSE N:\aas05\novadata\devel\kh\mtime.c SUC
CESS
226 2153169271 a.exe IRP_MJ_CREATE N:\aas05\novadata\devel\kh\mtime.c SU
CCESS Attributes:0000 Options:01000000
227 2153348409 a.exe IRP_MJ_QUERY_SECURITY N:\aas05\novadata\devel\kh\mt
ime.c SUCCESS
228 2153373876 a.exe IRP_MJ_CLEANUP N:\aas05\novadata\devel\kh\mtime.c S
UCCESS
229 2153523219 a.exe IRP_MJ_CLOSE N:\aas05\novadata\devel\kh\mtime.c SUC
CESS
230 2153814770 a.exe IRP_MJ_CREATE N:\aas05\novadata\devel\kh\mtime.c SU
CCESS Attributes:0000 Options:01000020
231 2153843578 a.exe FASTIO_QUERY_STANDARD_INFO N:\aas05\novadata\devel\
kh\mtime.c SUCCESS Size: 1107
232 2153855021 a.exe FASTIO_QUERY_STANDARD_INFO N:\aas05\novadata\devel\
kh\mtime.c SUCCESS Size: 1107
233 2154068675 a.exe IRP_MJ_QUERY_EA N:\aas05\novadata\devel\kh\mtime.c *
0xC0000052
234 2154216009 a.exe IRP_MJ_QUERY_INFORMATION N:\aas05\novadata\devel\kh
\mtime.c SUCCESS FileStreamInformation
235 2154243475 a.exe IRP_MJ_CLEANUP N:\aas05\novadata\devel\kh\mtime.c S
UCCESS
236 2154405637 a.exe IRP_MJ_CLOSE N:\aas05\novadata\devel\kh\mtime.c SUC
CESS
237 2154434611 a.exe IRP_MJ_QUERY_VOLUME_INFORMATION N:\aas05\novadata\d
evel\kh\mtime.c SUCCESS FileFsDeviceInformation
238 2154464955 a.exe IRP_MJ_CLEANUP N:\aas05\novadata\devel\kh\mtime.c S
UCCESS
239 2154645624 a.exe IRP_MJ_CLOSE N:\aas05\novadata\devel\kh\mtime.c SUC
CESS
CYGWIN - LOCAL
240 2154899541 a.exe FASTIO_QUERY_OPEN C:\msdos.sys SUCCESS
241 2154956272 a.exe IRP_MJ_CREATE C:\msdos.sys SUCCESS Attributes:0000
Options:01000020
242 2154979400 a.exe FASTIO_QUERY_STANDARD_INFO C:\msdos.sys SUCCESS Size:
0
243 2154988439 a.exe FASTIO_QUERY_STANDARD_INFO C:\msdos.sys SUCCESS Size:
0
244 2155009625 a.exe IRP_MJ_QUERY_EA C:\msdos.sys * 0xC0000052
245 2155034765 a.exe IRP_MJ_QUERY_INFORMATION C:\msdos.sys SUCCESS FileS
treamInformation
246 2155058651 a.exe IRP_MJ_CLEANUP C:\msdos.sys SUCCESS
247 2155073478 a.exe IRP_MJ_CLOSE C:\msdos.sys SUCCESS
248 2155225861 a.exe IRP_MJ_CREATE C:\msdos.sys SUCCESS Attributes:0080
Options:01000060
249 2155259322 a.exe IRP_MJ_READ C:\msdos.sys END OF FILE Offset: 0 Length:
10
250 2155278177 a.exe IRP_MJ_CLEANUP C:\msdos.sys SUCCESS
251 2155292101 a.exe IRP_MJ_CLOSE C:\msdos.sys SUCCESS
252 2155594737 a.exe IRP_MJ_CREATE C:\msdos.sys SUCCESS Attributes:0080
Options:01000060
253 2155632137 a.exe IRP_MJ_QUERY_VOLUME_INFORMATION C:\msdos.sys SUCCES
S FileFsVolumeInformation
254 2155652014 a.exe IRP_MJ_QUERY_INFORMATION C:\msdos.sys BUFFER
OVERFLOW FileAllInformation
255 2155707597 a.exe IRP_MJ_CREATE C:\msdos.sys SUCCESS Attributes:0000
Options:01000000
256 2155730823 a.exe IRP_MJ_QUERY_SECURITY C:\msdos.sys SUCCESS
257 2155751011 a.exe IRP_MJ_CLEANUP C:\msdos.sys SUCCESS
258 2155765169 a.exe IRP_MJ_CLOSE C:\msdos.sys SUCCESS
259 2155811935 a.exe IRP_MJ_CREATE C:\msdos.sys SUCCESS Attributes:0000
Options:01000000
260 2155832531 a.exe IRP_MJ_QUERY_SECURITY C:\msdos.sys SUCCESS
261 2155852015 a.exe IRP_MJ_CLEANUP C:\msdos.sys SUCCESS
262 2155865835 a.exe IRP_MJ_CLOSE C:\msdos.sys SUCCESS
263 2155914637 a.exe IRP_MJ_CREATE C:\msdos.sys SUCCESS Attributes:0000
Options:01000020
264 2155935854 a.exe FASTIO_QUERY_STANDARD_INFO C:\msdos.sys SUCCESS Size:
0
265 2155944749 a.exe FASTIO_QUERY_STANDARD_INFO C:\msdos.sys SUCCESS Size:
0
266 2155964723 a.exe IRP_MJ_QUERY_EA C:\msdos.sys * 0xC0000052
267 2155987475 a.exe IRP_MJ_QUERY_INFORMATION C:\msdos.sys SUCCESS FileS
treamInformation
268 2156008737 a.exe IRP_MJ_CLEANUP C:\msdos.sys SUCCESS
269 2156022770 a.exe IRP_MJ_CLOSE C:\msdos.sys SUCCESS
270 2156045157 a.exe IRP_MJ_CLEANUP C:\msdos.sys SUCCESS
271 2156058579 a.exe IRP_MJ_CLOSE C:\msdos.sys SUCCESS
272 2156237980 a.exe FASTIO_QUERY_OPEN C:\msdos.sys SUCCESS
273 2156286951 a.exe IRP_MJ_CREATE C:\msdos.sys SUCCESS Attributes:0000
Options:01000020
274 2156308194 a.exe FASTIO_QUERY_STANDARD_INFO C:\msdos.sys SUCCESS Size:
0
275 2156317061 a.exe FASTIO_QUERY_STANDARD_INFO C:\msdos.sys SUCCESS Size:
0
276 2156336619 a.exe IRP_MJ_QUERY_EA C:\msdos.sys * 0xC0000052
277 2156358823 a.exe IRP_MJ_QUERY_INFORMATION C:\msdos.sys SUCCESS FileS
treamInformation
278 2156380297 a.exe IRP_MJ_CLEANUP C:\msdos.sys SUCCESS
279 2156394095 a.exe IRP_MJ_CLOSE C:\msdos.sys SUCCESS
280 2156563192 a.exe IRP_MJ_CREATE C:\msdos.sys SUCCESS Attributes:0080
Options:01000060
281 2156593543 a.exe IRP_MJ_READ C:\msdos.sys END OF FILE Offset: 0 Length:
10
282 2156612505 a.exe IRP_MJ_CLEANUP C:\msdos.sys SUCCESS
283 2156626370 a.exe IRP_MJ_CLOSE C:\msdos.sys SUCCESS
284 2156782151 a.exe IRP_MJ_CREATE C:\msdos.sys SUCCESS Attributes:0080
Options:01000060
285 2156817139 a.exe IRP_MJ_QUERY_VOLUME_INFORMATION C:\msdos.sys SUCCES
S FileFsVolumeInformation
286 2156835742 a.exe IRP_MJ_QUERY_INFORMATION C:\msdos.sys BUFFER
OVERFLOW FileAllInformation
287 2156887487 a.exe IRP_MJ_CREATE C:\msdos.sys SUCCESS Attributes:0000
Options:01000000
288 2156909439 a.exe IRP_MJ_QUERY_SECURITY C:\msdos.sys SUCCESS
289 2156929209 a.exe IRP_MJ_CLEANUP C:\msdos.sys SUCCESS
290 2156943077 a.exe IRP_MJ_CLOSE C:\msdos.sys SUCCESS
291 2156989681 a.exe IRP_MJ_CREATE C:\msdos.sys SUCCESS Attributes:0000
Options:01000000
292 2157010219 a.exe IRP_MJ_QUERY_SECURITY C:\msdos.sys SUCCESS
293 2157029745 a.exe IRP_MJ_CLEANUP C:\msdos.sys SUCCESS
294 2157043573 a.exe IRP_MJ_CLOSE C:\msdos.sys SUCCESS
295 2157092035 a.exe IRP_MJ_CREATE C:\msdos.sys SUCCESS Attributes:0000
Options:01000020
296 2157113346 a.exe FASTIO_QUERY_STANDARD_INFO C:\msdos.sys SUCCESS Size:
0
297 2157122303 a.exe FASTIO_QUERY_STANDARD_INFO C:\msdos.sys SUCCESS Size:
0
298 2157141603 a.exe IRP_MJ_QUERY_EA C:\msdos.sys * 0xC0000052
299 2157164189 a.exe IRP_MJ_QUERY_INFORMATION C:\msdos.sys SUCCESS FileS
treamInformation
300 2157185263 a.exe IRP_MJ_CLEANUP C:\msdos.sys SUCCESS
301 2157199306 a.exe IRP_MJ_CLOSE C:\msdos.sys SUCCESS
302 2157221071 a.exe IRP_MJ_CLEANUP C:\msdos.sys SUCCESS
303 2157234525 a.exe IRP_MJ_CLOSE C:\msdos.sys SUCCESS
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