Change-Id: Ia8761c7709e09196dbb2499bcec76ab5bfc0c715
Reviewed-on: https://go-review.googlesource.com/35949Reviewed-by: Russ Cox <rsc@golang.org>

Change-Id: I371274fad0b6ef8d79a1c5581917c847c3e94830
Reviewed-on: https://go-review.googlesource.com/35948Reviewed-by: Russ Cox <rsc@golang.org>

Change-Id: Idfc4d6b3cbd1e3c17182fe9565149e77ee1edb46
Reviewed-on: https://go-review.googlesource.com/35943Reviewed-by: Quentin Smith <quentin@golang.org>

Change-Id: I90c73aa77b97b4921e839b376616646604e85a09
Reviewed-on: https://go-review.googlesource.com/35942Reviewed-by: Quentin Smith <quentin@golang.org>

Change-Id: I74ce7947e800c4db6dd67e96580a1f8a3ce8d52f
Reviewed-on: https://go-review.googlesource.com/35941Reviewed-by: Quentin Smith <quentin@golang.org>

Now that it's one table, move configurations in general case
to top row, not repeated once per metric.

Change-Id: I3c5c53da09b98a6d010ce51cdd7326ce5ebd635e
Reviewed-on: https://go-review.googlesource.com/35940Reviewed-by: Quentin Smith <quentin@golang.org>

- tag old-vs-new tables with tbody class oldnew
- tag better, worse, unchanged rows with classes
- print one big table, to keep alignment across tables
- tag note column and don't right-align

Change-Id: Ifd3b2103e02781904f6b73eeb47b00340484caf6
Reviewed-on: https://go-review.googlesource.com/35939Reviewed-by: Quentin Smith <quentin@golang.org>

The generated html changes in a few minor ways,
either unavoidable or not worth working around:

- Trailing <td></td> at end of row no longer removed.
- <td>~</td> instead of <td>~    </td>
- Literal + escaped to &#43;

Change-Id: I73a0d1f74ff4c3597dd96b1a4dac2d6a3d5cc462
Reviewed-on: https://go-review.googlesource.com/35938Reviewed-by: Quentin Smith <quentin@golang.org>

Change-Id: I33d4b6006f4df6b253133c4467488fd6da68a34f
Reviewed-on: https://go-review.googlesource.com/35937Reviewed-by: Quentin Smith <quentin@golang.org>

Change-Id: I4e47c206f12359d60d7f8889fb71514242bfd19b
Reviewed-on: https://go-review.googlesource.com/35936Reviewed-by: Quentin Smith <quentin@golang.org>

Change-Id: Ied07ec9cec690a1927e9e32fc8d47f36521f658f
Reviewed-on: https://go-review.googlesource.com/35935Reviewed-by: Quentin Smith <quentin@golang.org>

Change-Id: I20d5f0e2cebef4f577074b45b7849a2698310909
Reviewed-on: https://go-review.googlesource.com/35934Reviewed-by: Quentin Smith <quentin@golang.org>

Change-Id: I185b853a2580ee16741cbf1581ba465400a5b28b
Reviewed-on: https://go-review.googlesource.com/35947Reviewed-by: Russ Cox <rsc@golang.org>

Change-Id: Ica888f19254759a060015e9635cffd0231721dd4
Reviewed-on: https://go-review.googlesource.com/35946Reviewed-by: Russ Cox <rsc@golang.org>

Change-Id: Iedf55dbc792d9cc12fc5d2a0a674628eed8ad726
Reviewed-on: https://go-review.googlesource.com/35945Reviewed-by: Russ Cox <rsc@golang.org>

These will work better in the eventual package benchstat API.

Change-Id: I95c63f2fe7c1a0f6db09afbe9776539f264a577c
Reviewed-on: https://go-review.googlesource.com/35933Reviewed-by: Quentin Smith <quentin@golang.org>

Change-Id: I778bee598aa32c213ccfa956f63e8b55360e99ae
Reviewed-on: https://go-review.googlesource.com/35932
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Quentin Smith <quentin@golang.org>

Change-Id: If015d2cf0998b357f829e8e136bec5f901aa6091
Reviewed-on: https://go-review.googlesource.com/35930Reviewed-by: Russ Cox <rsc@golang.org>

Change-Id: I954c533190353a16be9cbe55541fef7b0aaa818b
Reviewed-on: https://go-review.googlesource.com/35877Reviewed-by: Russ Cox <rsc@golang.org>

Change-Id: Iaa40f3c6bf50b7351ca38ae3184431180ed71036
Reviewed-on: https://go-review.googlesource.com/35876Reviewed-by: Russ Cox <rsc@golang.org>

The display now shows the top N labels, and shows common labels
separately. Each label is a link that filters the results based on
that label.

Also fixes a typo and removes a harmless double Close.

Change-Id: I25b93c7bbfd584ad345c4508e64cd5db73298745
Reviewed-on: https://go-review.googlesource.com/35675Reviewed-by: Russ Cox <rsc@golang.org>

Change-Id: Id4d36e9da9839d85d37947b09303ec57121b6fb1
Reviewed-on: https://go-review.googlesource.com/35873Reviewed-by: Russ Cox <rsc@golang.org>

Change-Id: Ia9d62651ba23794cd64dfcf2ea2e529914f3b100
Reviewed-on: https://go-review.googlesource.com/35674Reviewed-by: Russ Cox <rsc@golang.org>

Change-Id: Ia38657da41f5ba5b68347f8e3e3dea112f8130ea
Reviewed-on: https://go-review.googlesource.com/35673Reviewed-by: Russ Cox <rsc@golang.org>

The database format allows multiple lines to be stored in a single
record, to reduce the number of rows in the database. This change
allows reading such records, though there is not yet any code which
can write them. This change also adds a test that will benefit from
this record compression.

Change-Id: Ia86153fb150534d701d01a0c102be5a3c29b826d
Reviewed-on: https://go-review.googlesource.com/35672Reviewed-by: Russ Cox <rsc@golang.org>

I copied the code from various dependencies in go-moremath
into a single 'internal/stats' package. That package is at the top
level of the repo because I expect to pull much of benchcmp
into an importable package.

For golang/go#14304.

Change-Id: Ie114839b2901f5060c202feb3ffc768bf43ce5da
Reviewed-on: https://go-review.googlesource.com/35503
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Quentin Smith <quentin@golang.org>

Show a meaningful error to the user if their query is invalid or
matches zero results.

Change-Id: I8894686b598e008bac418f85e5d6ab229b64ec09
Reviewed-on: https://go-review.googlesource.com/35504Reviewed-by: Russ Cox <rsc@golang.org>

Change-Id: Ic9615556358e0262384a1a2f3acb9e4e6ab98532
Reviewed-on: https://go-review.googlesource.com/35502Reviewed-by: Russ Cox <rsc@golang.org>

The app can a parse query and fetch relevant results. It can run on
both App Engine and locally.

Change-Id: I34a6415750fc29ed468997f05bc6d8c0ad068235
Reviewed-on: https://go-review.googlesource.com/35493Reviewed-by: Russ Cox <rsc@golang.org>

- uploadid -> upload
- fileid -> upload-part
- uploadtime -> upload-time
- uploadfile -> upload-file

Change-Id: I3b8a989d83a620a186c986fdd98e920868e9d089
Reviewed-on: https://go-review.googlesource.com/35492Reviewed-by: Russ Cox <rsc@golang.org>

Change-Id: I1bf6c01e5ad08b6bc780cd69ea0d1a2877691f7a
Reviewed-on: https://go-review.googlesource.com/35451Reviewed-by: Russ Cox <rsc@golang.org>

Change-Id: I052c2b3cc3440f081ef11ba5d999bf8e7f230c6a
Reviewed-on: https://go-review.googlesource.com/35450Reviewed-by: Russ Cox <rsc@golang.org>

This allows easily adding additional information when uploading
existing files. Example usage:

benchsave -header <(echo goarch: arm; echo goos: linux) *.log

Change-Id: I46afafd39d8314d9c06c209f868b71cd5e58c63a
Reviewed-on: https://go-review.googlesource.com/35350Reviewed-by: Russ Cox <rsc@golang.org>

Change-Id: Ib29820f8574a3ba09fce8079f75b933011ef2cee
Reviewed-on: https://go-review.googlesource.com/35267Reviewed-by: Russ Cox <rsc@golang.org>

The MySQL protocol requires 1-3 synchronous round-trips for every
INSERT statement; to reduce the overhead, we now batch up 900 label
INSERT statments at a time. This makes a massive difference;
TestQuery previously ran in 108s; with this change, it now runs in 5s.

We were also affected by golang/go#15606; since we now generate a new INSERT
statement for every record, we are sidestepping that issue.

Change-Id: Id7a56c18c0978470542135894a2f2bcf6f7c9dd1
Reviewed-on: https://go-review.googlesource.com/35266Reviewed-by: Russ Cox <rsc@golang.org>

The MySQL protocol and database/sql require several round-trips to
execute queries with placeholders. Setting interpolateParams will
cause the mysql client library to interpolate the arguments and issue
a single string query to the server, reducing the number of round
trips. See
https://www.vividcortex.com/blog/2014/11/19/analyzing-prepared-statement-performance-with-vividcortex/

Change-Id: I766d593e9981c7ce2fbb1b48fe919ab46699416c
Reviewed-on: https://go-review.googlesource.com/35264Reviewed-by: Russ Cox <rsc@golang.org>

Change-Id: Ica64b354cbf8f9bd43344459fac860a2c816d209
Reviewed-on: https://go-review.googlesource.com/35263Reviewed-by: Russ Cox <rsc@golang.org>

ReplaceUpload removes any records for an upload so that those records
can be reinserted in the database.

Change-Id: I8fa0701b72c3ace380d3c7922df0c17b81a0d426
Reviewed-on: https://go-review.googlesource.com/35257Reviewed-by: Russ Cox <rsc@golang.org>

Instead of simply sequentially-increasing upload IDs, we now generate
one with a date prefix.

Change-Id: Id54ab88e6d76932cfc121183ea2da5d145599d16
Reviewed-on: https://go-review.googlesource.com/35256Reviewed-by: Russ Cox <rsc@golang.org>

Change-Id: I11df054853be604fcabec6f20da7f34c970d7bfa
Reviewed-on: https://go-review.googlesource.com/35154Reviewed-by: Russ Cox <rsc@golang.org>