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commit 5d55e8d920cd5969e5cff567ee88afb13f40a1b9
parent 9be16852f212f56637fd4a41f3361d30ce7deb5c
Author: kim <89579420+NyaaaWhatsUpDoc@users.noreply.github.com>
Date:   Sun, 20 Nov 2022 16:33:49 +0000

[performance] add account block DB cache and remove block query joins (#1085)

* add account block DB cache and remove reliance on relational joins

* actually include cache key arguments...

* add a PutBlock() method which also updates the block cache, update tests accordingly

* use `PutBlock` instead of `Put(ctx, block)`

* add + use functions for deleting + invalidating blocks

Signed-off-by: kim <grufwub@gmail.com>
Co-authored-by: tsmethurst <tobi.smethurst@protonmail.com>
Diffstat:
Minternal/api/s2s/user/inboxpost_test.go | 2+-
Minternal/db/bundb/bundb.go | 7++++---
Minternal/db/bundb/relationship.go | 204+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++--------------------
Minternal/db/bundb/relationship_test.go | 128+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++--
Minternal/db/relationship.go | 15+++++++++++++++
Minternal/federation/federatingdb/create.go | 2+-
Minternal/federation/federatingdb/undo.go | 2+-
Minternal/federation/federatingprotocol_test.go | 4++--
Minternal/processing/account/createblock.go | 2+-
Minternal/processing/account/delete.go | 4++--
Minternal/processing/account/removeblock.go | 21+++++++++------------
11 files changed, 315 insertions(+), 76 deletions(-)

diff --git a/internal/api/s2s/user/inboxpost_test.go b/internal/api/s2s/user/inboxpost_test.go @@ -153,7 +153,7 @@ func (suite *InboxPostTestSuite) TestPostUnblock() { TargetAccountID: blockedAccount.ID, } - err = suite.db.Put(context.Background(), dbBlock) + err = suite.db.PutBlock(context.Background(), dbBlock) suite.NoError(err) asBlock, err := suite.tc.BlockToAS(context.Background(), dbBlock) diff --git a/internal/db/bundb/bundb.go b/internal/db/bundb/bundb.go @@ -166,6 +166,7 @@ func NewBunDBService(ctx context.Context) (db.DB, error) { notif := &notificationDB{conn: conn} status := &statusDB{conn: conn} emoji := &emojiDB{conn: conn} + relationship := &relationshipDB{conn: conn} timeline := &timelineDB{conn: conn} tombstone := &tombstoneDB{conn: conn} user := &userDB{conn: conn} @@ -174,6 +175,7 @@ func NewBunDBService(ctx context.Context) (db.DB, error) { account.emojis = emoji account.status = status admin.users = user + relationship.accounts = account status.accounts = account status.emojis = emoji status.mentions = mention @@ -185,6 +187,7 @@ func NewBunDBService(ctx context.Context) (db.DB, error) { emoji.init() mention.init() notif.init() + relationship.init() status.init() tombstone.init() user.init() @@ -209,9 +212,7 @@ func NewBunDBService(ctx context.Context) (db.DB, error) { }, Mention: mention, Notification: notif, - Relationship: &relationshipDB{ - conn: conn, - }, + Relationship: relationship, Session: &sessionDB{ conn: conn, }, diff --git a/internal/db/bundb/relationship.go b/internal/db/bundb/relationship.go @@ -21,23 +21,37 @@ package bundb import ( "context" "database/sql" + "errors" "fmt" + "time" + "codeberg.org/gruf/go-cache/v3/result" "github.com/superseriousbusiness/gotosocial/internal/db" "github.com/superseriousbusiness/gotosocial/internal/gtsmodel" "github.com/uptrace/bun" ) type relationshipDB struct { - conn *DBConn + conn *DBConn + accounts *accountDB + blockCache *result.Cache[*gtsmodel.Block] } -func (r *relationshipDB) newBlockQ(block *gtsmodel.Block) *bun.SelectQuery { - return r.conn. - NewSelect(). - Model(block). - Relation("Account"). - Relation("TargetAccount") +func (r *relationshipDB) init() { + // Initialize block result cache + r.blockCache = result.NewSized([]result.Lookup{ + {Name: "ID"}, + {Name: "AccountID.TargetAccountID"}, + {Name: "URI"}, + }, func(b1 *gtsmodel.Block) *gtsmodel.Block { + b2 := new(gtsmodel.Block) + *b2 = *b1 + return b2 + }, 1000) + + // Set cache TTL and start sweep routine + r.blockCache.SetTTL(time.Minute*5, false) + r.blockCache.Start(time.Second * 10) } func (r *relationshipDB) newFollowQ(follow interface{}) *bun.SelectQuery { @@ -49,43 +63,143 @@ func (r *relationshipDB) newFollowQ(follow interface{}) *bun.SelectQuery { } func (r *relationshipDB) IsBlocked(ctx context.Context, account1 string, account2 string, eitherDirection bool) (bool, db.Error) { + // Look for a block in direction of account1->account2 + block1, err := r.getBlock(ctx, account1, account2) + if err != nil && !errors.Is(err, db.ErrNoEntries) { + return false, err + } + + if block1 != nil { + // account1 blocks account2 + return true, nil + } else if !eitherDirection { + // Don't check for mutli-directional + return false, nil + } + + // Look for a block in direction of account2->account1 + block2, err := r.getBlock(ctx, account2, account1) + if err != nil && !errors.Is(err, db.ErrNoEntries) { + return false, err + } + + return (block2 != nil), nil +} + +func (r *relationshipDB) GetBlock(ctx context.Context, account1 string, account2 string) (*gtsmodel.Block, db.Error) { + // Fetch block from database + block, err := r.getBlock(ctx, account1, account2) + if err != nil { + return nil, err + } + + // Set the block originating account + block.Account, err = r.accounts.GetAccountByID(ctx, block.AccountID) + if err != nil { + return nil, err + } + + // Set the block target account + block.TargetAccount, err = r.accounts.GetAccountByID(ctx, block.TargetAccountID) + if err != nil { + return nil, err + } + + return block, nil +} + +func (r *relationshipDB) getBlock(ctx context.Context, account1 string, account2 string) (*gtsmodel.Block, db.Error) { + return r.blockCache.Load("AccountID.TargetAccountID", func() (*gtsmodel.Block, error) { + var block gtsmodel.Block + + q := r.conn.NewSelect().Model(&block). + Where("? = ?", bun.Ident("block.account_id"), account1). + Where("? = ?", bun.Ident("block.target_account_id"), account2) + if err := q.Scan(ctx); err != nil { + return nil, r.conn.ProcessError(err) + } + + return &block, nil + }, account1, account2) +} + +func (r *relationshipDB) PutBlock(ctx context.Context, block *gtsmodel.Block) db.Error { + return r.blockCache.Store(block, func() error { + _, err := r.conn.NewInsert().Model(block).Exec(ctx) + return r.conn.ProcessError(err) + }) +} + +func (r *relationshipDB) DeleteBlockByID(ctx context.Context, id string) db.Error { + if _, err := r.conn. + NewDelete(). + TableExpr("? AS ?", bun.Ident("blocks"), bun.Ident("block")). + Where("? = ?", bun.Ident("block.id"), id). + Exec(ctx); err != nil { + return r.conn.ProcessError(err) + } + + // Drop any old value from cache by this ID + r.blockCache.Invalidate("ID", id) + return nil +} + +func (r *relationshipDB) DeleteBlockByURI(ctx context.Context, uri string) db.Error { + if _, err := r.conn. + NewDelete(). + TableExpr("? AS ?", bun.Ident("blocks"), bun.Ident("block")). + Where("? = ?", bun.Ident("block.uri"), uri). + Exec(ctx); err != nil { + return r.conn.ProcessError(err) + } + + // Drop any old value from cache by this URI + r.blockCache.Invalidate("URI", uri) + return nil +} + +func (r *relationshipDB) DeleteBlocksByOriginAccountID(ctx context.Context, originAccountID string) db.Error { + blockIDs := []string{} + q := r.conn. NewSelect(). TableExpr("? AS ?", bun.Ident("blocks"), bun.Ident("block")). - Column("block.id") + Column("block.id"). + Where("? = ?", bun.Ident("block.account_id"), originAccountID) - if eitherDirection { - q = q. - WhereGroup(" OR ", func(inner *bun.SelectQuery) *bun.SelectQuery { - return inner. - Where("? = ?", bun.Ident("block.account_id"), account1). - Where("? = ?", bun.Ident("block.target_account_id"), account2) - }). - WhereGroup(" OR ", func(inner *bun.SelectQuery) *bun.SelectQuery { - return inner. - Where("? = ?", bun.Ident("block.account_id"), account2). - Where("? = ?", bun.Ident("block.target_account_id"), account1) - }) - } else { - q = q. - Where("? = ?", bun.Ident("block.account_id"), account1). - Where("? = ?", bun.Ident("block.target_account_id"), account2) + if err := q.Scan(ctx, &blockIDs); err != nil { + return r.conn.ProcessError(err) } - return r.conn.Exists(ctx, q) + for _, blockID := range blockIDs { + if err := r.DeleteBlockByID(ctx, blockID); err != nil { + return err + } + } + + return nil } -func (r *relationshipDB) GetBlock(ctx context.Context, account1 string, account2 string) (*gtsmodel.Block, db.Error) { - block := &gtsmodel.Block{} +func (r *relationshipDB) DeleteBlocksByTargetAccountID(ctx context.Context, targetAccountID string) db.Error { + blockIDs := []string{} - q := r.newBlockQ(block). - Where("? = ?", bun.Ident("block.account_id"), account1). - Where("? = ?", bun.Ident("block.target_account_id"), account2) + q := r.conn. + NewSelect(). + TableExpr("? AS ?", bun.Ident("blocks"), bun.Ident("block")). + Column("block.id"). + Where("? = ?", bun.Ident("block.target_account_id"), targetAccountID) - if err := q.Scan(ctx); err != nil { - return nil, r.conn.ProcessError(err) + if err := q.Scan(ctx, &blockIDs); err != nil { + return r.conn.ProcessError(err) } - return block, nil + + for _, blockID := range blockIDs { + if err := r.DeleteBlockByID(ctx, blockID); err != nil { + return err + } + } + + return nil } func (r *relationshipDB) GetRelationship(ctx context.Context, requestingAccount string, targetAccount string) (*gtsmodel.Relationship, db.Error) { @@ -144,30 +258,18 @@ func (r *relationshipDB) GetRelationship(ctx context.Context, requestingAccount rel.Requested = requested // check if the requesting account is blocking the target account - blockingQ := r.conn. - NewSelect(). - TableExpr("? AS ?", bun.Ident("blocks"), bun.Ident("block")). - Column("block.id"). - Where("? = ?", bun.Ident("block.account_id"), requestingAccount). - Where("? = ?", bun.Ident("block.target_account_id"), targetAccount) - blocking, err := r.conn.Exists(ctx, blockingQ) - if err != nil { + blockA2T, err := r.getBlock(ctx, requestingAccount, targetAccount) + if err != nil && !errors.Is(err, db.ErrNoEntries) { return nil, fmt.Errorf("GetRelationship: error checking blocking: %s", err) } - rel.Blocking = blocking + rel.Blocking = (blockA2T != nil) // check if the requesting account is blocked by the target account - blockedByQ := r.conn. - NewSelect(). - TableExpr("? AS ?", bun.Ident("blocks"), bun.Ident("block")). - Column("block.id"). - Where("? = ?", bun.Ident("block.account_id"), targetAccount). - Where("? = ?", bun.Ident("block.target_account_id"), requestingAccount) - blockedBy, err := r.conn.Exists(ctx, blockedByQ) - if err != nil { + blockT2A, err := r.getBlock(ctx, targetAccount, requestingAccount) + if err != nil && !errors.Is(err, db.ErrNoEntries) { return nil, fmt.Errorf("GetRelationship: error checking blockedBy: %s", err) } - rel.BlockedBy = blockedBy + rel.BlockedBy = (blockT2A != nil) return rel, nil } diff --git a/internal/db/bundb/relationship_test.go b/internal/db/bundb/relationship_test.go @@ -47,7 +47,7 @@ func (suite *RelationshipTestSuite) TestIsBlocked() { suite.False(blocked) // have account1 block account2 - if err := suite.db.Put(ctx, &gtsmodel.Block{ + if err := suite.db.PutBlock(ctx, &gtsmodel.Block{ ID: "01G202BCSXXJZ70BHB5KCAHH8C", URI: "http://localhost:8080/some_block_uri_1", AccountID: account1, @@ -81,7 +81,7 @@ func (suite *RelationshipTestSuite) TestGetBlock() { account1 := suite.testAccounts["local_account_1"].ID account2 := suite.testAccounts["local_account_2"].ID - if err := suite.db.Put(ctx, &gtsmodel.Block{ + if err := suite.db.PutBlock(ctx, &gtsmodel.Block{ ID: "01G202BCSXXJZ70BHB5KCAHH8C", URI: "http://localhost:8080/some_block_uri_1", AccountID: account1, @@ -96,6 +96,130 @@ func (suite *RelationshipTestSuite) TestGetBlock() { suite.Equal("01G202BCSXXJZ70BHB5KCAHH8C", block.ID) } +func (suite *RelationshipTestSuite) TestDeleteBlockByID() { + ctx := context.Background() + + // put a block in first + account1 := suite.testAccounts["local_account_1"].ID + account2 := suite.testAccounts["local_account_2"].ID + if err := suite.db.PutBlock(ctx, &gtsmodel.Block{ + ID: "01G202BCSXXJZ70BHB5KCAHH8C", + URI: "http://localhost:8080/some_block_uri_1", + AccountID: account1, + TargetAccountID: account2, + }); err != nil { + suite.FailNow(err.Error()) + } + + // make sure the block is in the db + block, err := suite.db.GetBlock(ctx, account1, account2) + suite.NoError(err) + suite.NotNil(block) + suite.Equal("01G202BCSXXJZ70BHB5KCAHH8C", block.ID) + + // delete the block by ID + err = suite.db.DeleteBlockByID(ctx, "01G202BCSXXJZ70BHB5KCAHH8C") + suite.NoError(err) + + // block should be gone + block, err = suite.db.GetBlock(ctx, account1, account2) + suite.ErrorIs(err, db.ErrNoEntries) + suite.Nil(block) +} + +func (suite *RelationshipTestSuite) TestDeleteBlockByURI() { + ctx := context.Background() + + // put a block in first + account1 := suite.testAccounts["local_account_1"].ID + account2 := suite.testAccounts["local_account_2"].ID + if err := suite.db.PutBlock(ctx, &gtsmodel.Block{ + ID: "01G202BCSXXJZ70BHB5KCAHH8C", + URI: "http://localhost:8080/some_block_uri_1", + AccountID: account1, + TargetAccountID: account2, + }); err != nil { + suite.FailNow(err.Error()) + } + + // make sure the block is in the db + block, err := suite.db.GetBlock(ctx, account1, account2) + suite.NoError(err) + suite.NotNil(block) + suite.Equal("01G202BCSXXJZ70BHB5KCAHH8C", block.ID) + + // delete the block by uri + err = suite.db.DeleteBlockByURI(ctx, "http://localhost:8080/some_block_uri_1") + suite.NoError(err) + + // block should be gone + block, err = suite.db.GetBlock(ctx, account1, account2) + suite.ErrorIs(err, db.ErrNoEntries) + suite.Nil(block) +} + +func (suite *RelationshipTestSuite) TestDeleteBlocksByOriginAccountID() { + ctx := context.Background() + + // put a block in first + account1 := suite.testAccounts["local_account_1"].ID + account2 := suite.testAccounts["local_account_2"].ID + if err := suite.db.PutBlock(ctx, &gtsmodel.Block{ + ID: "01G202BCSXXJZ70BHB5KCAHH8C", + URI: "http://localhost:8080/some_block_uri_1", + AccountID: account1, + TargetAccountID: account2, + }); err != nil { + suite.FailNow(err.Error()) + } + + // make sure the block is in the db + block, err := suite.db.GetBlock(ctx, account1, account2) + suite.NoError(err) + suite.NotNil(block) + suite.Equal("01G202BCSXXJZ70BHB5KCAHH8C", block.ID) + + // delete the block by originAccountID + err = suite.db.DeleteBlocksByOriginAccountID(ctx, account1) + suite.NoError(err) + + // block should be gone + block, err = suite.db.GetBlock(ctx, account1, account2) + suite.ErrorIs(err, db.ErrNoEntries) + suite.Nil(block) +} + +func (suite *RelationshipTestSuite) TestDeleteBlocksByTargetAccountID() { + ctx := context.Background() + + // put a block in first + account1 := suite.testAccounts["local_account_1"].ID + account2 := suite.testAccounts["local_account_2"].ID + if err := suite.db.PutBlock(ctx, &gtsmodel.Block{ + ID: "01G202BCSXXJZ70BHB5KCAHH8C", + URI: "http://localhost:8080/some_block_uri_1", + AccountID: account1, + TargetAccountID: account2, + }); err != nil { + suite.FailNow(err.Error()) + } + + // make sure the block is in the db + block, err := suite.db.GetBlock(ctx, account1, account2) + suite.NoError(err) + suite.NotNil(block) + suite.Equal("01G202BCSXXJZ70BHB5KCAHH8C", block.ID) + + // delete the block by targetAccountID + err = suite.db.DeleteBlocksByTargetAccountID(ctx, account2) + suite.NoError(err) + + // block should be gone + block, err = suite.db.GetBlock(ctx, account1, account2) + suite.ErrorIs(err, db.ErrNoEntries) + suite.Nil(block) +} + func (suite *RelationshipTestSuite) TestGetRelationship() { requestingAccount := suite.testAccounts["local_account_1"] targetAccount := suite.testAccounts["admin_account"] diff --git a/internal/db/relationship.go b/internal/db/relationship.go @@ -36,6 +36,21 @@ type Relationship interface { // not if you're just checking for the existence of a block. GetBlock(ctx context.Context, account1 string, account2 string) (*gtsmodel.Block, Error) + // PutBlock attempts to place the given account block in the database. + PutBlock(ctx context.Context, block *gtsmodel.Block) Error + + // DeleteBlockByID removes block with given ID from the database. + DeleteBlockByID(ctx context.Context, id string) Error + + // DeleteBlockByURI removes block with given AP URI from the database. + DeleteBlockByURI(ctx context.Context, uri string) Error + + // DeleteBlocksByOriginAccountID removes any blocks with accountID equal to originAccountID. + DeleteBlocksByOriginAccountID(ctx context.Context, originAccountID string) Error + + // DeleteBlocksByTargetAccountID removes any blocks with given targetAccountID. + DeleteBlocksByTargetAccountID(ctx context.Context, targetAccountID string) Error + // GetRelationship retrieves the relationship of the targetAccount to the requestingAccount. GetRelationship(ctx context.Context, requestingAccount string, targetAccount string) (*gtsmodel.Relationship, Error) diff --git a/internal/federation/federatingdb/create.go b/internal/federation/federatingdb/create.go @@ -103,7 +103,7 @@ func (f *federatingDB) activityBlock(ctx context.Context, asType vocab.Type, rec } block.ID = newID - if err := f.db.Put(ctx, block); err != nil { + if err := f.db.PutBlock(ctx, block); err != nil { return fmt.Errorf("activityBlock: database error inserting block: %s", err) } diff --git a/internal/federation/federatingdb/undo.go b/internal/federation/federatingdb/undo.go @@ -114,7 +114,7 @@ func (f *federatingDB) Undo(ctx context.Context, undo vocab.ActivityStreamsUndo) return errors.New("UNDO: block object account and inbox account were not the same") } // delete any existing BLOCK - if err := f.db.DeleteWhere(ctx, []db.Where{{Key: "uri", Value: gtsBlock.URI}}, &gtsmodel.Block{}); err != nil { + if err := f.db.DeleteBlockByURI(ctx, gtsBlock.URI); err != nil { return fmt.Errorf("UNDO: db error removing block: %s", err) } l.Debug("block undone") diff --git a/internal/federation/federatingprotocol_test.go b/internal/federation/federatingprotocol_test.go @@ -312,7 +312,7 @@ func (suite *FederatingProtocolTestSuite) TestBlocked2() { ctxWithOtherInvolvedIRIs := context.WithValue(ctxWithRequestingAccount, ap.ContextOtherInvolvedIRIs, otherInvolvedIRIs) // insert a block from inboxAccount targeting sendingAccount - if err := suite.db.Put(context.Background(), &gtsmodel.Block{ + if err := suite.db.PutBlock(context.Background(), &gtsmodel.Block{ ID: "01G3KBEMJD4VQ2D615MPV7KTRD", URI: "whatever", AccountID: inboxAccount.ID, @@ -350,7 +350,7 @@ func (suite *FederatingProtocolTestSuite) TestBlocked3() { ctxWithOtherInvolvedIRIs := context.WithValue(ctxWithRequestingAccount, ap.ContextOtherInvolvedIRIs, otherInvolvedIRIs) // insert a block from inboxAccount targeting CCed account - if err := suite.db.Put(context.Background(), &gtsmodel.Block{ + if err := suite.db.PutBlock(context.Background(), &gtsmodel.Block{ ID: "01G3KBEMJD4VQ2D615MPV7KTRD", URI: "whatever", AccountID: inboxAccount.ID, diff --git a/internal/processing/account/createblock.go b/internal/processing/account/createblock.go @@ -65,7 +65,7 @@ func (p *processor) BlockCreate(ctx context.Context, requestingAccount *gtsmodel block.URI = uris.GenerateURIForBlock(requestingAccount.Username, newBlockID) // whack it in the database - if err := p.db.Put(ctx, block); err != nil { + if err := p.db.PutBlock(ctx, block); err != nil { return nil, gtserror.NewErrorInternalError(fmt.Errorf("BlockCreate: error creating block in db: %s", err)) } diff --git a/internal/processing/account/delete.go b/internal/processing/account/delete.go @@ -99,12 +99,12 @@ func (p *processor) Delete(ctx context.Context, account *gtsmodel.Account, origi // 2. Delete account's blocks l.Trace("deleting account blocks") // first delete any blocks that this account created - if err := p.db.DeleteWhere(ctx, []db.Where{{Key: "account_id", Value: account.ID}}, &[]*gtsmodel.Block{}); err != nil { + if err := p.db.DeleteBlocksByOriginAccountID(ctx, account.ID); err != nil { l.Errorf("error deleting blocks created by account: %s", err) } // now delete any blocks that target this account - if err := p.db.DeleteWhere(ctx, []db.Where{{Key: "target_account_id", Value: account.ID}}, &[]*gtsmodel.Block{}); err != nil { + if err := p.db.DeleteBlocksByTargetAccountID(ctx, account.ID); err != nil { l.Errorf("error deleting blocks targeting account: %s", err) } diff --git a/internal/processing/account/removeblock.go b/internal/processing/account/removeblock.go @@ -20,6 +20,7 @@ package account import ( "context" + "errors" "fmt" "github.com/superseriousbusiness/gotosocial/internal/ap" @@ -37,23 +38,17 @@ func (p *processor) BlockRemove(ctx context.Context, requestingAccount *gtsmodel return nil, gtserror.NewErrorNotFound(fmt.Errorf("BlockCreate: error getting account %s from the db: %s", targetAccountID, err)) } - // check if a block exists, and remove it if it does (storing the URI for later) - var blockChanged bool - block := &gtsmodel.Block{} - if err := p.db.GetWhere(ctx, []db.Where{ - {Key: "account_id", Value: requestingAccount.ID}, - {Key: "target_account_id", Value: targetAccountID}, - }, block); err == nil { + // check if a block exists, and remove it if it does + block, err := p.db.GetBlock(ctx, requestingAccount.ID, targetAccountID) + if err == nil { + // we got a block, remove it block.Account = requestingAccount block.TargetAccount = targetAccount - if err := p.db.DeleteByID(ctx, block.ID, &gtsmodel.Block{}); err != nil { + if err := p.db.DeleteBlockByID(ctx, block.ID); err != nil { return nil, gtserror.NewErrorInternalError(fmt.Errorf("BlockRemove: error removing block from db: %s", err)) } - blockChanged = true - } - // block status changed so send the UNDO activity to the channel for async processing - if blockChanged { + // send the UNDO activity to the client worker for async processing p.clientWorker.Queue(messages.FromClientAPI{ APObjectType: ap.ActivityBlock, APActivityType: ap.ActivityUndo, @@ -61,6 +56,8 @@ func (p *processor) BlockRemove(ctx context.Context, requestingAccount *gtsmodel OriginAccount: requestingAccount, TargetAccount: targetAccount, }) + } else if !errors.Is(err, db.ErrNoEntries) { + return nil, gtserror.NewErrorInternalError(fmt.Errorf("BlockRemove: error getting possible block from db: %s", err)) } // return whatever relationship results from all this